diff --git a/utshell-0.5.0/build.rs b/utshell-0.5.0/build.rs
index a9771d334198e335058f1b03d57e0c1fe37d0000..fd9815252a1b9f6fb4b0708b8631aed4898ee00f 100644
--- a/utshell-0.5.0/build.rs
+++ b/utshell-0.5.0/build.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 extern crate dunce;
 
 use std::{env, path::PathBuf};
diff --git a/utshell-0.5.0/src/alias.rs b/utshell-0.5.0/src/alias.rs
index 7874655e0daafbdd012a550e41c8933ac110a93e..3896dd61460c0e13a3a4e0c2ee446e43d3dac596 100644
--- a/utshell-0.5.0/src/alias.rs
+++ b/utshell-0.5.0/src/alias.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::hashlib::{
     hash_create, hash_dispose, hash_flush, hash_insert, hash_remove, hash_search,
 };
diff --git a/utshell-0.5.0/src/array.rs b/utshell-0.5.0/src/array.rs
index 3bfba5696204907377e929930aba3954ca831fa7..d0d7e69960b7b28811e5f2dacf6d573c9df70e18 100644
--- a/utshell-0.5.0/src/array.rs
+++ b/utshell-0.5.0/src/array.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::dispose_cmd::dispose_words;
 use crate::make_cmd::{make_bare_word, make_word_list};
 use crate::src_common::*;
diff --git a/utshell-0.5.0/src/arrayfunc.rs b/utshell-0.5.0/src/arrayfunc.rs
index 8d14c7c0aaec80de82e387656f55f28aeb8ade39..051eaf1d10d6e2fdb144f61ad8d50c222e5ca17d 100644
--- a/utshell-0.5.0/src/arrayfunc.rs
+++ b/utshell-0.5.0/src/arrayfunc.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::array::{
     array_create, array_dispose_element, array_flush, array_insert, array_keys_to_word_list,
     array_reference, array_remove, array_to_assign, array_to_word_list,
diff --git a/utshell-0.5.0/src/assoc.rs b/utshell-0.5.0/src/assoc.rs
index 74f64a9874b986dca93e1ade2e91ab3dbefb7ff1..72bd8237638d6bdfee5952c948c8b3708ca5b05d 100644
--- a/utshell-0.5.0/src/assoc.rs
+++ b/utshell-0.5.0/src/assoc.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::dispose_cmd::dispose_words;
 use crate::hashlib::{hash_dispose, hash_flush, hash_remove, hash_search};
 use crate::make_cmd::{make_bare_word, make_word_list};
diff --git a/utshell-0.5.0/src/bashhist.rs b/utshell-0.5.0/src/bashhist.rs
index 4379aba94109ddf3b10164b96b6968fd53792162..928e9bf6a4bc5bc68cf43f52217641005ec396f1 100644
--- a/utshell-0.5.0/src/bashhist.rs
+++ b/utshell-0.5.0/src/bashhist.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::bashline::bash_re_edit;
 use crate::general::file_exists;
 use crate::pathexp::setup_ignore_patterns;
@@ -274,32 +279,8 @@ pub fn maybe_append_history(mut filename: *mut libc::c_char) -> libc::c_int {
     let mut fd: libc::c_int = 0;
     let mut result: libc::c_int = 0;
     let mut histlen: libc::c_int = 0;
-    let mut buf: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut buf: crate::src_common::stat = crate::src_common::stat_init;
+    
     result = EXECUTION_SUCCESS as i32;
     unsafe {
         if history_lines_this_session > 0 {
diff --git a/utshell-0.5.0/src/bashline.rs b/utshell-0.5.0/src/bashline.rs
index 554a5dfc0cefdbbd47e31f3ebca88a45220eab62..3198bf25e90da01832276d91397343525bdb194b 100644
--- a/utshell-0.5.0/src/bashline.rs
+++ b/utshell-0.5.0/src/bashline.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::alias::{alias_expand, all_aliases, get_alias_value};
 use crate::bashhist::{bash_add_history, pre_process_line};
 use crate::bracecomp::bash_brace_completion;
@@ -3267,32 +3272,7 @@ fn directory_exists(
     let mut new_dirname: *mut libc::c_char = 0 as *mut libc::c_char;
     let mut dirlen: libc::c_int = 0;
     let mut r: libc::c_int = 0;
-    let mut sb: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut sb: crate::src_common::stat = crate::src_common::stat_init;
     unsafe {
         new_dirname = if should_dequote != 0 {
             bash_dequote_filename(dirname as *mut libc::c_char, rl_completion_quote_character)
diff --git a/utshell-0.5.0/src/bin/utshell.rs b/utshell-0.5.0/src/bin/utshell.rs
index 739f677a8cf988a16b7f013a6f9bbb70c3c898d0..b4fa560ff8b0456775b2feacd2e39b6cffd89b63 100644
--- a/utshell-0.5.0/src/bin/utshell.rs
+++ b/utshell-0.5.0/src/bin/utshell.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 #![allow(
     dead_code,
     mutable_transmutes,
diff --git a/utshell-0.5.0/src/bin/utshellversion.rs b/utshell-0.5.0/src/bin/utshellversion.rs
index 71303495405d9df2889ed7ff4f77b232b102915d..25f20a611a246652201b48d141dbf7db3bca176d 100644
--- a/utshell-0.5.0/src/bin/utshellversion.rs
+++ b/utshell-0.5.0/src/bin/utshellversion.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 #![allow(
     dead_code,
     mutable_transmutes,
diff --git a/utshell-0.5.0/src/brace.rs b/utshell-0.5.0/src/brace.rs
index b868c60945ba634f8efce96325dd1f075269b0ae..3570397da9b3d66ef1b33482cc10757701edd5fd 100644
--- a/utshell-0.5.0/src/brace.rs
+++ b/utshell-0.5.0/src/brace.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::general::legal_number;
 use crate::sig::{termsig_handler, throw_to_top_level};
 use crate::src_common::*;
diff --git a/utshell-0.5.0/src/bracecomp.rs b/utshell-0.5.0/src/bracecomp.rs
index 0bcb2bea713859c6f242a8ef441c13f12e09e3f5..851a0e64ab70a38b0e8eae38766aca416db1f2bf 100644
--- a/utshell-0.5.0/src/bracecomp.rs
+++ b/utshell-0.5.0/src/bracecomp.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 
 fn string_gcd(mut s1: *mut libc::c_char, mut s2: *mut libc::c_char) -> libc::c_int {
diff --git a/utshell-0.5.0/src/builtins/alias.rs b/utshell-0.5.0/src/builtins/alias.rs
index 4520433f80ed3eb27b76b049373b4d3350ca6f20..b1bfdf765dcac8d6831ffa6aeb5021b4215de596 100644
--- a/utshell-0.5.0/src/builtins/alias.rs
+++ b/utshell-0.5.0/src/builtins/alias.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/bashgetopt.rs b/utshell-0.5.0/src/builtins/bashgetopt.rs
index 502f1255558a7d6ca7232397a3dc6541046a62ab..cb2ba0c2720096d9a6b134ebd2c0dad2e7e31d0c 100644
--- a/utshell-0.5.0/src/builtins/bashgetopt.rs
+++ b/utshell-0.5.0/src/builtins/bashgetopt.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::general::legal_number;
 use crate::src_common::*;
 
diff --git a/utshell-0.5.0/src/builtins/bind.rs b/utshell-0.5.0/src/builtins/bind.rs
index bc86db29901341c28e2d485e47dca950ff78c457..b2d704abd6f6ded75ef0840a0d6fa52f71218861 100644
--- a/utshell-0.5.0/src/builtins/bind.rs
+++ b/utshell-0.5.0/src/builtins/bind.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/break_1.rs b/utshell-0.5.0/src/builtins/break_1.rs
index e9ae5fe6fa3c9581d611a9e1e556a8c9e0ac1182..73e8226e2db9559b22359209a5bb96b4656474c7 100644
--- a/utshell-0.5.0/src/builtins/break_1.rs
+++ b/utshell-0.5.0/src/builtins/break_1.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/builtin.rs b/utshell-0.5.0/src/builtins/builtin.rs
index 13d18aadc205b8d9095628b62a11fba839bbda90..d160d64e4cd136112a5200afdb3877f9626bc411 100644
--- a/utshell-0.5.0/src/builtins/builtin.rs
+++ b/utshell-0.5.0/src/builtins/builtin.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/builtins.rs b/utshell-0.5.0/src/builtins/builtins.rs
index 35147b938382f02d4c987a5291a5ae8547700253..b1a525b330fe2b33bdafcf4c7c8f8412e44ab74e 100644
--- a/utshell-0.5.0/src/builtins/builtins.rs
+++ b/utshell-0.5.0/src/builtins/builtins.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 
 use super::alias::{alias_builtin, unalias_builtin};
diff --git a/utshell-0.5.0/src/builtins/caller.rs b/utshell-0.5.0/src/builtins/caller.rs
index 38b4a79656c1a202f5f42b0703ea10b166c84d46..c331b8a537e7552e94175f7d38b8f847cd351ce4 100644
--- a/utshell-0.5.0/src/builtins/caller.rs
+++ b/utshell-0.5.0/src/builtins/caller.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/cd.rs b/utshell-0.5.0/src/builtins/cd.rs
index 609f52aaa9249b2f2eae51a7937f6eefd8374d8d..45684525696ad4dbf27ec384b5206a8de2c98554 100644
--- a/utshell-0.5.0/src/builtins/cd.rs
+++ b/utshell-0.5.0/src/builtins/cd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/cmd.rs b/utshell-0.5.0/src/builtins/cmd.rs
index b998610f2045dac48ec07021361912aca6e15dbd..a091fc3940ba998d4d2347d40cc6520e60eeb711 100644
--- a/utshell-0.5.0/src/builtins/cmd.rs
+++ b/utshell-0.5.0/src/builtins/cmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/colon.rs b/utshell-0.5.0/src/builtins/colon.rs
index 145f1bbbf6bc69c80f0207d9e9e0a74f9eee4fce..0e0da77b3e4687a0a16d505e1c218274022846a8 100644
--- a/utshell-0.5.0/src/builtins/colon.rs
+++ b/utshell-0.5.0/src/builtins/colon.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/command.rs b/utshell-0.5.0/src/builtins/command.rs
index a32dfb90b021eaa628d762277b4f813b83214ad2..4011afac886e6463528663bc5d407b35e3e16041 100644
--- a/utshell-0.5.0/src/builtins/command.rs
+++ b/utshell-0.5.0/src/builtins/command.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/common.rs b/utshell-0.5.0/src/builtins/common.rs
index 63a5a362c783e6fc2e6e36ef47cdd7cc197b2287..6bf9440ab48642a863c668571d15c544ba7d3600 100644
--- a/utshell-0.5.0/src/builtins/common.rs
+++ b/utshell-0.5.0/src/builtins/common.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/complete.rs b/utshell-0.5.0/src/builtins/complete.rs
index 2d473be60630b54f6b204084a6d2c32c89208a22..677da0a9750a070d36ecbce7ee511dab0fbcf5bc 100644
--- a/utshell-0.5.0/src/builtins/complete.rs
+++ b/utshell-0.5.0/src/builtins/complete.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/declare.rs b/utshell-0.5.0/src/builtins/declare.rs
index df94095de46741633638832c97a1e4242ed78025..b293eedfecefd9f9c36b507742af77e7f8fc5024 100644
--- a/utshell-0.5.0/src/builtins/declare.rs
+++ b/utshell-0.5.0/src/builtins/declare.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/echo.rs b/utshell-0.5.0/src/builtins/echo.rs
index 396ce6f8afa7e0908be34adf6990fba0442fc696..ee63082d593c3384547c5f2b95763af4eb58ad51 100644
--- a/utshell-0.5.0/src/builtins/echo.rs
+++ b/utshell-0.5.0/src/builtins/echo.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/enable.rs b/utshell-0.5.0/src/builtins/enable.rs
index ced58c78ed68c203503667cff51d76b3d587fa2b..82475c51c10f2749cee7c63fe27f33c395cc390b 100644
--- a/utshell-0.5.0/src/builtins/enable.rs
+++ b/utshell-0.5.0/src/builtins/enable.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/eval.rs b/utshell-0.5.0/src/builtins/eval.rs
index 6eadc5014f9d558fe7af734b5ae4297fb3ab1124..4ab4cc846c948fa346af9810903ec1dc1568d631 100644
--- a/utshell-0.5.0/src/builtins/eval.rs
+++ b/utshell-0.5.0/src/builtins/eval.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/evalfile.rs b/utshell-0.5.0/src/builtins/evalfile.rs
index 6d0f38cbc3b5982bf9ace5257dffdc7042a1bce0..23e81aeba574736da68cac3a9613c2f217c90165 100644
--- a/utshell-0.5.0/src/builtins/evalfile.rs
+++ b/utshell-0.5.0/src/builtins/evalfile.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use libc::{__errno_location, close, free, malloc, memmove, open, read, strlen};
 
 use crate::array::{array_dispose_element, array_rshift, array_shift};
@@ -35,32 +40,7 @@ fn evalfile(mut filename: *const libc::c_char, mut flags: libc::c_int) -> libc::
         let mut nnull: libc::c_int = 0;
         let mut nr: ssize_t = 0;
         let mut string: *mut libc::c_char = 0 as *mut libc::c_char;
-        let mut finfo: crate::src_common::stat = crate::src_common::stat {
-            st_dev: 0,
-            st_ino: 0,
-            st_nlink: 0,
-            st_mode: 0,
-            st_uid: 0,
-            st_gid: 0,
-            __pad0: 0,
-            st_rdev: 0,
-            st_size: 0,
-            st_blksize: 0,
-            st_blocks: 0,
-            st_atim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            st_mtim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            st_ctim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            __glibc_reserved: [0; 3],
-        };
+        let mut finfo: crate::src_common::stat = crate::src_common::stat_init;
         let mut file_size: size_t = 0;
         let mut errfunc: sh_vmsg_func_t = None;
         let mut funcname_v: *mut SHELL_VAR = 0 as *mut SHELL_VAR;
diff --git a/utshell-0.5.0/src/builtins/evalstring.rs b/utshell-0.5.0/src/builtins/evalstring.rs
index 3579dca1e5723e3cd4c1fd9c61bd6db55a07964e..0ac9e0f24f54685a29fcd2e127480cccc15e5c87 100644
--- a/utshell-0.5.0/src/builtins/evalstring.rs
+++ b/utshell-0.5.0/src/builtins/evalstring.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use libc::{close, free, malloc, open, strcmp, strcpy, strlen};
 
 use crate::bashhist::bash_history_disable;
diff --git a/utshell-0.5.0/src/builtins/exec.rs b/utshell-0.5.0/src/builtins/exec.rs
index 17ce1dce46dfdbc5522b2d9239c6f3b932aecc7f..175b5397668d5cca75b787581f1721cc6a15b907 100644
--- a/utshell-0.5.0/src/builtins/exec.rs
+++ b/utshell-0.5.0/src/builtins/exec.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/exec_cmd.rs b/utshell-0.5.0/src/builtins/exec_cmd.rs
index bfbc65fa3e9d7e2a1fe8a5d376de0c0258a2a2b7..7477bcee48f1d47e240dd9e0ef56d29eb85df28c 100644
--- a/utshell-0.5.0/src/builtins/exec_cmd.rs
+++ b/utshell-0.5.0/src/builtins/exec_cmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/exit.rs b/utshell-0.5.0/src/builtins/exit.rs
index 66ef744f42ea8aa36c1b05acb2479ce799a996e0..540a340dd2c555d1698ae1b4ea0222217fb299a8 100644
--- a/utshell-0.5.0/src/builtins/exit.rs
+++ b/utshell-0.5.0/src/builtins/exit.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/fc.rs b/utshell-0.5.0/src/builtins/fc.rs
index d32fb3b3a9ba6def31ab90bfecc921cfe8c68f97..bf354dfdac8a5adda3234fdbbb2ec7f6872ff9a4 100644
--- a/utshell-0.5.0/src/builtins/fc.rs
+++ b/utshell-0.5.0/src/builtins/fc.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/fg_bg.rs b/utshell-0.5.0/src/builtins/fg_bg.rs
index 010e78f5e95ea67adb153067672dff193d2c8b27..6607d68a48c4e3eb86e38f38068c9fe9177f5eeb 100644
--- a/utshell-0.5.0/src/builtins/fg_bg.rs
+++ b/utshell-0.5.0/src/builtins/fg_bg.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/getopt.rs b/utshell-0.5.0/src/builtins/getopt.rs
index 4ca7984241644e8e754fbef2403b1def7897f0e7..2fa2f514a626e70ddb2d929f8a08cb0b4211b57d 100644
--- a/utshell-0.5.0/src/builtins/getopt.rs
+++ b/utshell-0.5.0/src/builtins/getopt.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 
 #[no_mangle]
diff --git a/utshell-0.5.0/src/builtins/getopts.rs b/utshell-0.5.0/src/builtins/getopts.rs
index 2c16ea9b4fffce9cd50516446b389be620ee0798..0c69d04abf301b1ad9cdd255227c96aca515eb5c 100644
--- a/utshell-0.5.0/src/builtins/getopts.rs
+++ b/utshell-0.5.0/src/builtins/getopts.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/hash.rs b/utshell-0.5.0/src/builtins/hash.rs
index af8413bb243fa5e6879ce1552a00ef6b30eea9dc..3f48d1317ab8069f4c6ac15e8cd2a36494a7fb8b 100644
--- a/utshell-0.5.0/src/builtins/hash.rs
+++ b/utshell-0.5.0/src/builtins/hash.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::alias::all_aliases;
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
diff --git a/utshell-0.5.0/src/builtins/help.rs b/utshell-0.5.0/src/builtins/help.rs
index 37ae5400b73b2da96ffd6e2339cb8ed0cf0ad94d..88cbf18ac56e2dd8358e3a51da66a681b8201560 100644
--- a/utshell-0.5.0/src/builtins/help.rs
+++ b/utshell-0.5.0/src/builtins/help.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
 use crate::builtins::builtins::current_builtin;
 use crate::builtins::common::{builtin_address_internal, builtin_usage, get_local_str};
diff --git a/utshell-0.5.0/src/builtins/history.rs b/utshell-0.5.0/src/builtins/history.rs
index 2c2f35e48405cdd28db0bfb4d5c859d626ec086e..597d9f25a0a390695be97d27f82d6c6fd71dd09c 100644
--- a/utshell-0.5.0/src/builtins/history.rs
+++ b/utshell-0.5.0/src/builtins/history.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::bashhist::{bash_clear_history, bash_delete_history_range, maybe_append_history};
 use crate::bashhist::{bash_delete_histent, bash_delete_last_history, check_add_history};
diff --git a/utshell-0.5.0/src/builtins/jobs.rs b/utshell-0.5.0/src/builtins/jobs.rs
index a2de688b2dccdb65eca45f731064000dd85b7b9f..c341eb08abd7004228348cb4513ef7876335a314 100644
--- a/utshell-0.5.0/src/builtins/jobs.rs
+++ b/utshell-0.5.0/src/builtins/jobs.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
 use crate::builtins::common::{builtin_usage, get_job_spec, sh_badjob};
diff --git a/utshell-0.5.0/src/builtins/kill.rs b/utshell-0.5.0/src/builtins/kill.rs
index 5686f7af6595390b77bf19085b275dc6ba824400..6b87e5b0b14a6950f2f6d30a67a44b357683fe6a 100644
--- a/utshell-0.5.0/src/builtins/kill.rs
+++ b/utshell-0.5.0/src/builtins/kill.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::builtins::common::{
     builtin_usage, display_signal_list, err_translate_fn, get_job_spec, sh_badjob, sh_badpid,
diff --git a/utshell-0.5.0/src/builtins/let_1.rs b/utshell-0.5.0/src/builtins/let_1.rs
index 80080150f35150acef4f4a652b3a26e605668be7..ce65ada982b3bdeef3357ac2a4a9226175e7bea7 100644
--- a/utshell-0.5.0/src/builtins/let_1.rs
+++ b/utshell-0.5.0/src/builtins/let_1.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::builtins::common::err_translate_fn;
 use crate::expr::evalexp;
diff --git a/utshell-0.5.0/src/builtins/mapfile.rs b/utshell-0.5.0/src/builtins/mapfile.rs
index c902c3bf00f5a8f1058d36afb64922efc223f102..6c8d465615f1a805c6865704db02d565e96ebff1 100644
--- a/utshell-0.5.0/src/builtins/mapfile.rs
+++ b/utshell-0.5.0/src/builtins/mapfile.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::array::array_flush;
 use crate::arrayfunc::{bind_array_element, find_or_make_array_variable};
diff --git a/utshell-0.5.0/src/builtins/printf.rs b/utshell-0.5.0/src/builtins/printf.rs
index e4153fef73e7d347b2945b9345cc7e14b9f9d76b..6970b24246b68992f4d12bf956264220d747ff29 100644
--- a/utshell-0.5.0/src/builtins/printf.rs
+++ b/utshell-0.5.0/src/builtins/printf.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::arrayfunc::valid_array_reference;
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
diff --git a/utshell-0.5.0/src/builtins/pushd.rs b/utshell-0.5.0/src/builtins/pushd.rs
index 39d1461a461789955312f1b62ff73148ed9bb9b2..afb510e92a1ac972b941278c836dbd2b0624a40e 100644
--- a/utshell-0.5.0/src/builtins/pushd.rs
+++ b/utshell-0.5.0/src/builtins/pushd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::builtins::cd::cd_builtin;
 use crate::builtins::common::{
diff --git a/utshell-0.5.0/src/builtins/read.rs b/utshell-0.5.0/src/builtins/read.rs
index aafc4e0d4c84bb8d7fa7fbab37914b41aea5ef52..d20a64b05e8b03c59604531d75dde44d07c3bc9a 100644
--- a/utshell-0.5.0/src/builtins/read.rs
+++ b/utshell-0.5.0/src/builtins/read.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::array::array_flush;
 use crate::arrayfunc::{
diff --git a/utshell-0.5.0/src/builtins/return_1.rs b/utshell-0.5.0/src/builtins/return_1.rs
index fcaaba2f863f9efe543c9199ffb97ae795da8bf5..032498c8833dd6c294ebe34c5af02b345d626209 100644
--- a/utshell-0.5.0/src/builtins/return_1.rs
+++ b/utshell-0.5.0/src/builtins/return_1.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::builtins::common::get_exitstat;
 use crate::src_common::*;
diff --git a/utshell-0.5.0/src/builtins/set.rs b/utshell-0.5.0/src/builtins/set.rs
index 24c269f6d7cf6e38f8ed16db573fd5d43cd1564b..a8b1121bb426c308cc2566e229a112bd3f911410 100644
--- a/utshell-0.5.0/src/builtins/set.rs
+++ b/utshell-0.5.0/src/builtins/set.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::arrayfunc::{array_variable_part, unbind_array_element, valid_array_reference};
 use crate::bashhist::{bash_history_disable, bash_history_enable, load_history};
diff --git a/utshell-0.5.0/src/builtins/setattr.rs b/utshell-0.5.0/src/builtins/setattr.rs
index 30631a8005d59c98da2acb21357616b3758f9ec4..04b9b163c7b718ef043baf9b59d4c4542ce8c193 100644
--- a/utshell-0.5.0/src/builtins/setattr.rs
+++ b/utshell-0.5.0/src/builtins/setattr.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::array::array_to_assign;
 use crate::arrayfunc::print_array_assignment;
diff --git a/utshell-0.5.0/src/builtins/shift.rs b/utshell-0.5.0/src/builtins/shift.rs
index 9a3ca4f34d567a411ad857692cdefb1f88f5f520..12a786019b4f4e5240fe9cc88d3abf35400fc39a 100644
--- a/utshell-0.5.0/src/builtins/shift.rs
+++ b/utshell-0.5.0/src/builtins/shift.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::builtins::common::{
     builtin_usage, get_numeric_arg, number_of_args, sh_erange, shift_args,
 };
diff --git a/utshell-0.5.0/src/builtins/shopt.rs b/utshell-0.5.0/src/builtins/shopt.rs
index 96aaa633517f85d6c700f8d7c875199ebe511fb6..cc0a0482b14d8552fdcd2bcab4cfb60e2a1eeeac 100644
--- a/utshell-0.5.0/src/builtins/shopt.rs
+++ b/utshell-0.5.0/src/builtins/shopt.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::bashline::{enable_hostname_completion, set_directory_hook};
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
diff --git a/utshell-0.5.0/src/builtins/signal.rs b/utshell-0.5.0/src/builtins/signal.rs
index 0995d8fdf60b36bea4f3725be05f092aa683e688..b4b0afa5cd573f9981f900de28e984aef13bd8aa 100644
--- a/utshell-0.5.0/src/builtins/signal.rs
+++ b/utshell-0.5.0/src/builtins/signal.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 //# SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
 
 //# SPDX-License-Identifier: GPL-3.0-or-later
diff --git a/utshell-0.5.0/src/builtins/source.rs b/utshell-0.5.0/src/builtins/source.rs
index dfeacc67672b1c0642d9bf950353b0b990f1cd30..47f7db31c0be269c435c73f933e719cdb0b67e1a 100644
--- a/utshell-0.5.0/src/builtins/source.rs
+++ b/utshell-0.5.0/src/builtins/source.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::builtins::common::{
     builtin_usage, dollar_vars_changed, no_options, remember_args, set_dollar_vars_unchanged,
     sh_restricted,
diff --git a/utshell-0.5.0/src/builtins/suspend.rs b/utshell-0.5.0/src/builtins/suspend.rs
index 5f2641589825b7a66b2052bbf6b4bb93c9032a6a..1f6c724997389d0a6d91b5e68a4426a35a46a038 100644
--- a/utshell-0.5.0/src/builtins/suspend.rs
+++ b/utshell-0.5.0/src/builtins/suspend.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
 use crate::builtins::common::{builtin_usage, no_args, sh_nojobs};
diff --git a/utshell-0.5.0/src/builtins/test.rs b/utshell-0.5.0/src/builtins/test.rs
index 74ba4c699b7967d16bb45f3092a424babd372ad5..eaa48d91dff68336a35463b276e077fc1c5521c1 100644
--- a/utshell-0.5.0/src/builtins/test.rs
+++ b/utshell-0.5.0/src/builtins/test.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::builtins::common::make_builtin_argv;
 use crate::src_common::*;
 use crate::test::test_command;
diff --git a/utshell-0.5.0/src/builtins/times.rs b/utshell-0.5.0/src/builtins/times.rs
index de1894ae887c02e4db1ef44b82e3e16ffe322ad2..7c86927b804028f706c8d74c65d878f122c902d8 100644
--- a/utshell-0.5.0/src/builtins/times.rs
+++ b/utshell-0.5.0/src/builtins/times.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::builtins::common::{no_options, sh_chkwrite};
 use crate::src_common::*;
 
diff --git a/utshell-0.5.0/src/builtins/trap.rs b/utshell-0.5.0/src/builtins/trap.rs
index 8da27e73473e1b9ca68b26a013227a13be4e9a3d..e7a2b3ce938dc6f56644fc82666abc48ec02d3fa 100644
--- a/utshell-0.5.0/src/builtins/trap.rs
+++ b/utshell-0.5.0/src/builtins/trap.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use super::help::builtin_help;
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
 use crate::builtins::common::{builtin_usage, display_signal_list, sh_chkwrite, sh_invalidsig};
diff --git a/utshell-0.5.0/src/builtins/type_1.rs b/utshell-0.5.0/src/builtins/type_1.rs
index ee1906981ce95fdfdfceea85bddc6864b98562fe..3277be8222ff4d2b8015db6b776f88f2fd751848 100644
--- a/utshell-0.5.0/src/builtins/type_1.rs
+++ b/utshell-0.5.0/src/builtins/type_1.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use fluent_bundle::FluentArgs;
 use fluent_resmgr::resource_manager::ResourceManager;
 
diff --git a/utshell-0.5.0/src/builtins/ulimit.rs b/utshell-0.5.0/src/builtins/ulimit.rs
index 3f6384c7559b53276a44690be48779de3fb94e73..d8ef2bf35252a4e0b23081fcc14ea58e8adf77c7 100644
--- a/utshell-0.5.0/src/builtins/ulimit.rs
+++ b/utshell-0.5.0/src/builtins/ulimit.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
 use crate::builtins::common::{builtin_usage, sh_chkwrite, sh_erange, sh_invalidnum};
 use crate::builtins::help::builtin_help;
diff --git a/utshell-0.5.0/src/builtins/umask.rs b/utshell-0.5.0/src/builtins/umask.rs
index 635d21ea15c86249b12a075f0ad5f9b18eb763a5..bf80e56d7a751e09df87690eea7ae9a6f45ec1fe 100644
--- a/utshell-0.5.0/src/builtins/umask.rs
+++ b/utshell-0.5.0/src/builtins/umask.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
diff --git a/utshell-0.5.0/src/builtins/wait.rs b/utshell-0.5.0/src/builtins/wait.rs
index 0d4b720246b5b708d514b643e4e9f8a5fec1b1fd..3acd103d3df2d6f6eae7003152ab577e590b4134 100644
--- a/utshell-0.5.0/src/builtins/wait.rs
+++ b/utshell-0.5.0/src/builtins/wait.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::arrayfunc::valid_array_reference;
 use crate::builtins::bashgetopt::{internal_getopt, reset_internal_getopt};
 use crate::builtins::common::{
diff --git a/utshell-0.5.0/src/copycmd.rs b/utshell-0.5.0/src/copycmd.rs
index c1d3c06e927e7acc4c9835a4af4da3934e8c9803..0263b726eb47da9e7e12430b2f4264f80589097e 100644
--- a/utshell-0.5.0/src/copycmd.rs
+++ b/utshell-0.5.0/src/copycmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::list::list_reverse;
 use crate::make_cmd::{make_bare_word, make_word_list};
 use crate::src_common::*;
diff --git a/utshell-0.5.0/src/dispose_cmd.rs b/utshell-0.5.0/src/dispose_cmd.rs
index 9778d3377b0265a072af793d9be845d9f4d500d0..36f42f88b9a3cabe09bf73c370e7f0e11bf930cf 100644
--- a/utshell-0.5.0/src/dispose_cmd.rs
+++ b/utshell-0.5.0/src/dispose_cmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::error::command_error;
 use crate::src_common::*;
 
diff --git a/utshell-0.5.0/src/error.rs b/utshell-0.5.0/src/error.rs
index 49529332543d910b2ee8a960b61e635fef509ccf..c84f596e75451b893881f81e386dfa72b31649cf 100644
--- a/utshell-0.5.0/src/error.rs
+++ b/utshell-0.5.0/src/error.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::array::array_reference;
 use crate::execute_cmd::executing_line_number;
 use crate::general::base_pathname;
diff --git a/utshell-0.5.0/src/eval.rs b/utshell-0.5.0/src/eval.rs
index a5f26d8812cd180b7ee7b54e2819eb04e5dd1799..0d22407db76f765173eb0f58cf29ea37e1f0531f 100644
--- a/utshell-0.5.0/src/eval.rs
+++ b/utshell-0.5.0/src/eval.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::array::array_to_argv;
 use crate::builtins::common::get_working_directory;
 use crate::builtins::exit::bash_logout;
diff --git a/utshell-0.5.0/src/execute_cmd.rs b/utshell-0.5.0/src/execute_cmd.rs
index 654d13f1729727a8dfc384ca758e543b878eb5e6..428052295bfeef89124cb79cd65113f8d7390a92 100644
--- a/utshell-0.5.0/src/execute_cmd.rs
+++ b/utshell-0.5.0/src/execute_cmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 
 use crate::alias::delete_all_aliases;
diff --git a/utshell-0.5.0/src/expr.rs b/utshell-0.5.0/src/expr.rs
index 9ebb636b5a4564266ce0ac1a78dae907cdeea0e4..60bbe06e36401427231f3c37f746b37141498269 100644
--- a/utshell-0.5.0/src/expr.rs
+++ b/utshell-0.5.0/src/expr.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::arrayfunc::{array_variable_name, array_variable_part, get_array_value};
 use crate::error::err_unboundvar;
 use crate::general::legal_identifier;
diff --git a/utshell-0.5.0/src/findcmd.rs b/utshell-0.5.0/src/findcmd.rs
index 763349275a15de186be72fb58bf317a93fb9d55c..6cf8b47f47eb7fe172306f133689410114fcd5b0 100644
--- a/utshell-0.5.0/src/findcmd.rs
+++ b/utshell-0.5.0/src/findcmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::general::{absolute_program, bash_tilde_expand, conf_standard_path, extract_colon_unit};
 use crate::hashcmd::{phash_insert, phash_remove, phash_search};
 use crate::pathexp::setup_ignore_patterns;
@@ -46,32 +51,7 @@ fn exec_name_should_ignore(name: *const libc::c_char) -> libc::c_int {
 
 #[no_mangle]
 pub fn file_status(name: *const libc::c_char) -> libc::c_int {
-    let mut finfo: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut finfo: crate::src_common::stat = crate::src_common::stat_init;
     let mut r: libc::c_int = 0;
     unsafe{
     if stat(name, &mut finfo) < 0 {
@@ -281,32 +261,7 @@ pub fn user_command_matches(
     let mut path_list: *mut libc::c_char = 0 as *mut libc::c_char;
     let mut path_element: *mut libc::c_char = 0 as *mut libc::c_char;
     let mut match_0: *mut libc::c_char = 0 as *mut libc::c_char;
-    let mut dotinfo: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut dotinfo: crate::src_common::stat = crate::src_common::stat_init;
     static mut match_list: *mut *mut libc::c_char =
         0 as *const *mut libc::c_char as *mut *mut libc::c_char;
     static mut match_list_size: libc::c_int = 0 as libc::c_int;
@@ -484,32 +439,7 @@ fn find_user_command_in_path(
     let mut path: *mut libc::c_char = 0 as *mut libc::c_char;
     let mut path_index: libc::c_int = 0;
     let mut name_len: libc::c_int = 0;
-    let mut dotinfo: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut dotinfo: crate::src_common::stat = crate::src_common::stat_init;
     unsafe {
         dot_found_in_search = 0;
 
diff --git a/utshell-0.5.0/src/flags.rs b/utshell-0.5.0/src/flags.rs
index 9a41d67c0427e04e96997dd751063257c5a1ec99..c074dafb3cb053321ffc9c624a8f573bd8b7e63f 100644
--- a/utshell-0.5.0/src/flags.rs
+++ b/utshell-0.5.0/src/flags.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::bashhist::bash_initialize_history;
 use crate::jobs::set_job_control;
 use crate::src_common::*;
diff --git a/utshell-0.5.0/src/general.rs b/utshell-0.5.0/src/general.rs
index 8263304d7331aebb4784abdfd5a1241e2b97cd50..9bf6281c99fe7cfbb9c0b3989fc45faa12e6098e 100644
--- a/utshell-0.5.0/src/general.rs
+++ b/utshell-0.5.0/src/general.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::arrayfunc::{array_variable_name, valid_array_reference};
 use crate::builtins::{
     pushd::get_dirstack_from_string,
@@ -699,58 +704,8 @@ pub fn same_file(
     mut stp1: *mut crate::src_common::stat,
     mut stp2: *mut crate::src_common::stat,
 ) -> libc::c_int {
-    let mut st1: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
-    let mut st2: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut st1: crate::src_common::stat = crate::src_common::stat_init;
+    let mut st2: crate::src_common::stat = crate::src_common::stat_init;
     unsafe{
     if stp1.is_null() {
         if stat(path1, &mut st1) != 0 as libc::c_int {
@@ -899,64 +854,14 @@ pub fn sh_closepipe(mut pv: *mut libc::c_int) -> libc::c_int {
 /* **************************************************************** */
 #[no_mangle]
 pub fn file_exists(mut fn_0: *const libc::c_char) -> libc::c_int {
-    let mut sb: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut sb: crate::src_common::stat = crate::src_common::stat_init;
 
    unsafe{ return (stat(fn_0, &mut sb) == 0 as libc::c_int) as libc::c_int;}
 }
 
 #[no_mangle]
 pub fn file_isdir(mut fn_0: *const libc::c_char) -> libc::c_int {
-    let mut sb: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut sb: crate::src_common::stat = crate::src_common::stat_init;
 
     unsafe{return (stat(fn_0, &mut sb) == 0 && S_ISDIR!(sb.st_mode)) as libc::c_int;}
 }
diff --git a/utshell-0.5.0/src/hashcmd.rs b/utshell-0.5.0/src/hashcmd.rs
index b7f3a20e541951cb71b641214c344b4a80dfffcb..db88257291aa3f6f9724b2c864477c49634555a1 100644
--- a/utshell-0.5.0/src/hashcmd.rs
+++ b/utshell-0.5.0/src/hashcmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::findcmd::executable_file;
 use crate::general::same_file;
 use crate::hashlib::{hash_create, hash_flush, hash_insert, hash_remove, hash_search};
diff --git a/utshell-0.5.0/src/hashlib.rs b/utshell-0.5.0/src/hashlib.rs
index d7f570f6d20a3c26b165363cdcbd4425f2b31469..e207d6d170980da2b0e3d331299042e41d13ddc0 100644
--- a/utshell-0.5.0/src/hashlib.rs
+++ b/utshell-0.5.0/src/hashlib.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 
 #[no_mangle]
diff --git a/utshell-0.5.0/src/input.rs b/utshell-0.5.0/src/input.rs
index b43ecb4f06c612bc563b54c119ac69370ddfe6b2..cb25fd5e9ce65b07856825aca4f7f8f41d4dee04 100644
--- a/utshell-0.5.0/src/input.rs
+++ b/utshell-0.5.0/src/input.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::general::sh_unset_nodelay_mode;
 use crate::src_common::*;
 use crate::stringlib::xbcopy;
@@ -383,32 +388,7 @@ is invalid, return a NULL stream. */
 pub fn fd_to_buffered_stream(mut fd: libc::c_int) -> *mut BUFFERED_STREAM {
     let mut buffer: *mut libc::c_char = 0 as *mut libc::c_char;
     let mut size: size_t = 0;
-    let mut sb: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut sb: crate::src_common::stat = crate::src_common::stat_init;
     unsafe {
         if crate::src_common::fstat(fd, &mut sb) < 0 as libc::c_int {
             close(fd);
diff --git a/utshell-0.5.0/src/jobs.rs b/utshell-0.5.0/src/jobs.rs
index ceba08caaa2366866cdc165b1ed9ec36a888c4ff..d2ebd913c3ab5d6b7aae4d4337aaeb588253451d 100644
--- a/utshell-0.5.0/src/jobs.rs
+++ b/utshell-0.5.0/src/jobs.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::builtins::{
     common::{get_working_directory, the_current_working_directory},
     evalfile::sourcelevel,
diff --git a/utshell-0.5.0/src/lib.rs b/utshell-0.5.0/src/lib.rs
index ef5e7d80d117055b5d94f684eaacfa39ce3e9f66..3efe91c46af16a839f3af2a3783f929941a3608d 100644
--- a/utshell-0.5.0/src/lib.rs
+++ b/utshell-0.5.0/src/lib.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 extern crate lazy_static;
 #[warn(unused_unsafe)]
 #[macro_use]
diff --git a/utshell-0.5.0/src/list.rs b/utshell-0.5.0/src/list.rs
index a6b961b2daed035dcf33fbabe5cc20ae3e2dc722..f70fc695720a6be421da3c14c582497835ae607a 100644
--- a/utshell-0.5.0/src/list.rs
+++ b/utshell-0.5.0/src/list.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 
 #[no_mangle]
diff --git a/utshell-0.5.0/src/local.rs b/utshell-0.5.0/src/local.rs
index 155fd47467f9c0bafed5bd4a1d88d116bf31f303..7448775772bb06e8963b22486512179d29e1dffb 100644
--- a/utshell-0.5.0/src/local.rs
+++ b/utshell-0.5.0/src/local.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common;
 use crate::src_common::*;
 use crate::variables::maybe_make_export_env;
diff --git a/utshell-0.5.0/src/mailcheck.rs b/utshell-0.5.0/src/mailcheck.rs
index d4f2c50e082d05d329d832836e353a6f7e837788..f98ad552d1604c096dbf0f9b279deef0f9351a7f 100644
--- a/utshell-0.5.0/src/mailcheck.rs
+++ b/utshell-0.5.0/src/mailcheck.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::general::{extract_colon_unit, full_pathname, legal_number};
 use crate::src_common::*;
 use crate::subst::expand_string_to_string;
@@ -63,32 +68,7 @@ fn init_mail_file(i: libc::c_int) {
 
 fn update_mail_file(i: libc::c_int) {
     let file: *mut libc::c_char;
-    let mut finfo: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut finfo: crate::src_common::stat = crate::src_common::stat_init;
     unsafe {
         file = (**mailfiles.offset(i as isize)).name;
         if mailstat(file, &mut finfo) == 0 as libc::c_int {
@@ -100,32 +80,7 @@ fn update_mail_file(i: libc::c_int) {
 }
 
 fn add_mail_file(file: *mut libc::c_char, msg: *mut libc::c_char) -> libc::c_int {
-    let mut finfo: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut finfo: crate::src_common::stat = crate::src_common::stat_init;
     let filename: *mut libc::c_char;
     let mut i: libc::c_int;
     filename = full_pathname(file);
@@ -224,32 +179,7 @@ pub fn init_mail_dates() {
 
 fn file_mod_date_changed(i: libc::c_int) -> libc::c_int {
     let mtime_0: time_t;
-    let mut finfo: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut finfo: crate::src_common::stat = crate::src_common::stat_init;
     unsafe {
         let file: *mut libc::c_char;
         file = (**mailfiles.offset(i as isize)).name;
@@ -271,32 +201,7 @@ fn file_mod_date_changed(i: libc::c_int) -> libc::c_int {
 
 fn file_access_date_changed(i: libc::c_int) -> libc::c_int {
     let atime_0: time_t;
-    let mut finfo: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut finfo: crate::src_common::stat = crate::src_common::stat_init;
     let file: *mut libc::c_char;
     unsafe {
         file = (**mailfiles.offset(i as isize)).name;
@@ -313,32 +218,7 @@ fn file_access_date_changed(i: libc::c_int) -> libc::c_int {
 
 fn file_has_grown(i: libc::c_int) -> libc::c_int {
     let size: off_t;
-    let mut finfo: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut finfo: crate::src_common::stat = crate::src_common::stat_init;
     unsafe {
         let file: *mut libc::c_char;
         file = (**mailfiles.offset(i as isize)).name;
diff --git a/utshell-0.5.0/src/make_cmd.rs b/utshell-0.5.0/src/make_cmd.rs
index 2d8c04ca1cd011c36135c5ab67b7451bcc188f53..ed501d02ad40302513dca997e452c0c6c36ac1d4 100644
--- a/utshell-0.5.0/src/make_cmd.rs
+++ b/utshell-0.5.0/src/make_cmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::array::array_reference;
 use crate::builtins::common::builtin_address_internal;
 use crate::dispose_cmd::{dispose_word, dispose_words};
diff --git a/utshell-0.5.0/src/nojobs.rs b/utshell-0.5.0/src/nojobs.rs
index 5e52968e5f9f3ea36e0985c200ab636a18806ef1..edd86954186836ba51e1ae20ef9fb2e60e2aad08 100644
--- a/utshell-0.5.0/src/nojobs.rs
+++ b/utshell-0.5.0/src/nojobs.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*; 
 use std::mem::size_of;
 
diff --git a/utshell-0.5.0/src/pathexp.rs b/utshell-0.5.0/src/pathexp.rs
index 5045ae28a4985859f38c8097269655e241055bb3..47a576f36de28873d47d7cd385f044b47c15eb69 100644
--- a/utshell-0.5.0/src/pathexp.rs
+++ b/utshell-0.5.0/src/pathexp.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 use crate::stringlib::substring;
 use crate::subst::skip_to_delim;
diff --git a/utshell-0.5.0/src/pcomplete.rs b/utshell-0.5.0/src/pcomplete.rs
index 5915a8087758838afa4d4812a3e5398b604e82af..5b2cb240889f43bfa840cba17680464ebdda9813 100644
--- a/utshell-0.5.0/src/pcomplete.rs
+++ b/utshell-0.5.0/src/pcomplete.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 use crate::unwind_prot::begin_unwind_frame;
 use std::convert::TryInto;
diff --git a/utshell-0.5.0/src/pcomplib.rs b/utshell-0.5.0/src/pcomplib.rs
index 3e86740cac5c1f2c3d119f8ca3d7e37b6b8c7e0b..feeaf30c33fb9977782c55efd2ac93910277942a 100644
--- a/utshell-0.5.0/src/pcomplib.rs
+++ b/utshell-0.5.0/src/pcomplib.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::hashlib::{
     hash_create, hash_dispose, hash_flush, hash_insert, hash_remove, hash_search, hash_walk,
 };
diff --git a/utshell-0.5.0/src/print_cmd.rs b/utshell-0.5.0/src/print_cmd.rs
index 1bdc3084ac346bd31faede873f790bfd2453a50f..728bd2ab38b3fd26156c803e5ab3bde904e931b3 100644
--- a/utshell-0.5.0/src/print_cmd.rs
+++ b/utshell-0.5.0/src/print_cmd.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::copycmd::copy_command;
 use crate::copycmd::copy_redirect;
 use crate::dispose_cmd::{dispose_command, dispose_redirects};
diff --git a/utshell-0.5.0/src/readline.rs b/utshell-0.5.0/src/readline.rs
index 42af003f472977c2a16f9623ab3f28e90608d19f..7cf32d5a9455112798fe8ceda753f4a781272e35 100644
--- a/utshell-0.5.0/src/readline.rs
+++ b/utshell-0.5.0/src/readline.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 pub const control_character_threshold: u32 = 32;
 pub const control_character_mask: u32 = 31;
diff --git a/utshell-0.5.0/src/redir.rs b/utshell-0.5.0/src/redir.rs
index 10ffa9a3a89303eec0c3d5a9d944073b4cfbc5c9..5e786957271f2127b67246ab19634015c7e8a618 100644
--- a/utshell-0.5.0/src/redir.rs
+++ b/utshell-0.5.0/src/redir.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::arrayfunc::{array_variable_part, get_array_value, valid_array_reference};
 use crate::copycmd::{copy_redirects, copy_word};
 use crate::dispose_cmd::{dispose_redirects, dispose_words};
@@ -562,32 +567,7 @@ fn noclobber_open(
     unsafe {
         let mut r: libc::c_int = 0;
         let mut fd: libc::c_int = 0;
-        let mut finfo: crate::src_common::stat = crate::src_common::stat {
-            st_dev: 0,
-            st_ino: 0,
-            st_nlink: 0,
-            st_mode: 0,
-            st_uid: 0,
-            st_gid: 0,
-            __pad0: 0,
-            st_rdev: 0,
-            st_size: 0,
-            st_blksize: 0,
-            st_blocks: 0,
-            st_atim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            st_mtim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            st_ctim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            __glibc_reserved: [0; 3],
-        };
+        let mut finfo: crate::src_common::stat = crate::src_common::stat_init;
         let mut finfo2: crate::src_common::stat = crate::src_common::stat { ..finfo };
         r = stat(filename, &mut finfo);
         if r == 0 && S_ISREG!(finfo.st_mode) {
diff --git a/utshell-0.5.0/src/sig.rs b/utshell-0.5.0/src/sig.rs
index 9a924f1b6911f2bdab9c118a5f7b085a075e32e7..a2f1283a578f60e1a112a337b65bfbbaa4ecf6a4 100644
--- a/utshell-0.5.0/src/sig.rs
+++ b/utshell-0.5.0/src/sig.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::bashhist::maybe_save_shell_history;
 use crate::bashline::{bashline_reset, bashline_set_event_hook};
 use crate::builtins::evalstring::parse_and_execute_cleanup;
diff --git a/utshell-0.5.0/src/src_common.rs b/utshell-0.5.0/src/src_common.rs
index 02044246c2456b6b6ff3796fae8e2965342bcdd7..7ea10158f48f8196d2a2c34ddca2217c8bfa543d 100644
--- a/utshell-0.5.0/src/src_common.rs
+++ b/utshell-0.5.0/src/src_common.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 pub use libc::*;
 
 pub use crate::array::array_dispose_element;
@@ -4885,10 +4890,20 @@ pub type __uid_t = libc::c_uint;
 pub type __gid_t = libc::c_uint;
 pub type __ino_t = libc::c_ulong;
 pub type __mode_t = libc::c_uint;
+
+#[cfg(target_arch = "x86_64")]
 pub type __nlink_t = libc::c_ulong;
+#[cfg(not(target_arch = "x86_64"))]
+pub type __nlink_t = libc::c_uint;
+
 pub type __rlim_t = libc::c_ulong;
 pub type __time_t = libc::c_long;
+
+#[cfg(target_arch = "x86_64")]
 pub type __blksize_t = libc::c_long;
+#[cfg(not(target_arch = "x86_64"))]
+pub type __blksize_t = libc::c_int;
+
 pub type __blkcnt_t = libc::c_long;
 pub type __syscall_slong_t = libc::c_long;
 pub type __sig_atomic_t = libc::c_int;
@@ -4907,20 +4922,67 @@ pub type sig_atomic_t = __sig_atomic_t;
 pub struct stat {
     pub st_dev: __dev_t,
     pub st_ino: __ino_t,
+    #[cfg(target_arch = "x86_64")]
     pub st_nlink: __nlink_t,
     pub st_mode: __mode_t,
+    #[cfg(not(target_arch = "x86_64"))]
+    pub st_nlink: __nlink_t,
     pub st_uid: __uid_t,
     pub st_gid: __gid_t,
+    #[cfg(target_arch = "x86_64")]
     pub __pad0: libc::c_int,
     pub st_rdev: __dev_t,
+    #[cfg(not(target_arch = "x86_64"))]
+    pub __pad1: __dev_t,
     pub st_size: __off_t,
     pub st_blksize: __blksize_t,
+    #[cfg(not(target_arch = "x86_64"))]
+    pub __pad2: libc::c_int,
     pub st_blocks: __blkcnt_t,
     pub st_atim: timespec,
     pub st_mtim: timespec,
     pub st_ctim: timespec,
+    #[cfg(target_arch = "x86_64")]
     pub __glibc_reserved: [__syscall_slong_t; 3],
-}
+    #[cfg(not(target_arch = "x86_64"))]
+    pub __glibc_reserved: [libc::c_int; 2],
+}
+
+// stat类型初始化
+pub const stat_init: stat = stat {
+    st_dev: 0,
+    st_ino: 0,
+    st_nlink: 0,
+    st_mode: 0,
+    st_uid: 0,
+    st_gid: 0,
+    #[cfg(target_arch = "x86_64")]
+    __pad0: 0,
+    st_rdev: 0,
+    #[cfg(not(target_arch = "x86_64"))]
+    __pad1: 0,
+    st_size: 0,
+    st_blksize: 0,
+    #[cfg(not(target_arch = "x86_64"))]
+    __pad2: 0,
+    st_blocks: 0,
+    st_atim: timespec {
+        tv_sec: 0,
+        tv_nsec: 0,
+    },
+    st_mtim: timespec {
+        tv_sec: 0,
+        tv_nsec: 0,
+    },
+    st_ctim: timespec {
+        tv_sec: 0,
+        tv_nsec: 0,
+    },
+    #[cfg(target_arch = "x86_64")]
+    __glibc_reserved: [0; 3],
+    #[cfg(not(target_arch = "x86_64"))]
+    __glibc_reserved: [0; 2],
+};
 
 #[derive(Copy, Clone)]
 #[repr(C)]
diff --git a/utshell-0.5.0/src/stringlib.rs b/utshell-0.5.0/src/stringlib.rs
index f8bf1fc5008730c9fce3efbdab2b89df360e11be..ea685d37a1fcf74b4503004fd0f08a0bdafe9c86 100644
--- a/utshell-0.5.0/src/stringlib.rs
+++ b/utshell-0.5.0/src/stringlib.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::pathexp::quote_globbing_chars;
 use crate::src_common::*;
 
diff --git a/utshell-0.5.0/src/subst.rs b/utshell-0.5.0/src/subst.rs
index fdb6c836709559dec4c909fc55025ab192bc15a8..542ef3732d3c5641bd46caff49c9a89f1b5f2693 100644
--- a/utshell-0.5.0/src/subst.rs
+++ b/utshell-0.5.0/src/subst.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 #![allow(
     dead_code,
     mutable_transmutes,
diff --git a/utshell-0.5.0/src/syntax.rs b/utshell-0.5.0/src/syntax.rs
index ad8c303722d3f267cb640f5f8a8d2a021a39e8ec..1994480d7ce0c698b5daf0e612d4a193accc129b 100644
--- a/utshell-0.5.0/src/syntax.rs
+++ b/utshell-0.5.0/src/syntax.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 // use libc::c_int;
 // use r_bash::*;
diff --git a/utshell-0.5.0/src/test.rs b/utshell-0.5.0/src/test.rs
index 4ef19af2b79a41b5491d3ef85271442bbea3307b..e84c717604b5f04a1937783657d956fdfa64f88a 100644
--- a/utshell-0.5.0/src/test.rs
+++ b/utshell-0.5.0/src/test.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::arrayfunc::{array_value, valid_array_reference};
 use crate::assoc::assoc_reference;
 use crate::builtins::common::number_of_args;
@@ -691,58 +696,9 @@ pub fn filecomp(
     mut t: *mut libc::c_char,
     op: libc::c_int,
 ) -> libc::c_int {
-    let mut st1: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
-    let mut st2: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut st1: crate::src_common::stat = crate::src_common::stat_init;
+    let mut st2: crate::src_common::stat = crate::src_common::stat_init;
+
     let mut ts1: crate::src_common::timespec = crate::src_common::timespec {
         tv_sec: 0,
         tv_nsec: 0,
@@ -882,32 +838,7 @@ pub fn binary_test(
 #[no_mangle]
 pub fn unary_test(mut op: *mut libc::c_char, mut arg: *mut libc::c_char) -> libc::c_int {
     let mut r: intmax_t = 0;
-    let mut stat_buf: crate::src_common::stat = crate::src_common::stat {
-        st_dev: 0,
-        st_ino: 0,
-        st_nlink: 0,
-        st_mode: 0,
-        st_uid: 0,
-        st_gid: 0,
-        __pad0: 0,
-        st_rdev: 0,
-        st_size: 0,
-        st_blksize: 0,
-        st_blocks: 0,
-        st_atim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_mtim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        st_ctim: crate::src_common::timespec {
-            tv_sec: 0,
-            tv_nsec: 0,
-        },
-        __glibc_reserved: [0; 3],
-    };
+    let mut stat_buf: crate::src_common::stat = crate::src_common::stat_init;
     let mut mtime: crate::src_common::timespec = crate::src_common::timespec {
         tv_sec: 0,
         tv_nsec: 0,
diff --git a/utshell-0.5.0/src/trap.rs b/utshell-0.5.0/src/trap.rs
index 28b5c8bff39e8601ade7fb13c92d22fd55cc73e7..d22133e77fcc51d21b038cafd6771adfdc4eba1d 100644
--- a/utshell-0.5.0/src/trap.rs
+++ b/utshell-0.5.0/src/trap.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::bashline::bashline_set_event_hook;
 use crate::builtins::evalstring::evalstring;
 use crate::builtins::wait::wait_builtin;
diff --git a/utshell-0.5.0/src/unwind_prot.rs b/utshell-0.5.0/src/unwind_prot.rs
index 986fd8de709a6799584aa077bc40902478c17b01..d7ad1bcb24af9ccfabdda2a9c6f4a2dda12761a6 100644
--- a/utshell-0.5.0/src/unwind_prot.rs
+++ b/utshell-0.5.0/src/unwind_prot.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 use std::convert::TryInto;
 
diff --git a/utshell-0.5.0/src/utshell.rs b/utshell-0.5.0/src/utshell.rs
index 2db88f0d5f65f3132376fa3e64211ae7232683a2..d41a914c80c5efba673c2db58d560112a8f5149c 100644
--- a/utshell-0.5.0/src/utshell.rs
+++ b/utshell-0.5.0/src/utshell.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common;
 use crate::bashhist::{
     bash_history_reinit, bash_initialize_history, load_history, maybe_save_shell_history,
@@ -1191,32 +1196,7 @@ fn open_shell_script(script_name: *mut libc::c_char) -> libc::c_int {
         let mut t: *mut libc::c_char = 0 as *mut libc::c_char;
         let mut sample: [libc::c_char; 80] = [0; 80];
         let mut sample_len: libc::c_int = 0;
-        let mut sb: crate::src_common::stat = crate::src_common::stat {
-            st_dev: 0,
-            st_ino: 0,
-            st_nlink: 0,
-            st_mode: 0,
-            st_uid: 0,
-            st_gid: 0,
-            __pad0: 0,
-            st_rdev: 0,
-            st_size: 0,
-            st_blksize: 0,
-            st_blocks: 0,
-            st_atim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            st_mtim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            st_ctim: crate::src_common::timespec {
-                tv_sec: 0,
-                tv_nsec: 0,
-            },
-            __glibc_reserved: [0; 3],
-        };
+        let mut sb: crate::src_common::stat = crate::src_common::stat_init;
         let mut funcname_v: *mut SHELL_VAR = 0 as *mut SHELL_VAR;
         let mut bash_source_v: *mut SHELL_VAR = 0 as *mut SHELL_VAR;
         let mut bash_lineno_v: *mut SHELL_VAR = 0 as *mut SHELL_VAR;
diff --git a/utshell-0.5.0/src/variables.rs b/utshell-0.5.0/src/variables.rs
index b32d3a0d4ee31689d889ae1c5c131522b45465d9..0fa7b61a8bbb4ef9b14fa234eaa7d667c84e4511 100644
--- a/utshell-0.5.0/src/variables.rs
+++ b/utshell-0.5.0/src/variables.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::alias::add_alias;
 use crate::array::array_copy;
 use crate::array::array_create;
diff --git a/utshell-0.5.0/src/version.rs b/utshell-0.5.0/src/version.rs
index a6be9df944ba51949505ef165c15d6521e8eb5b6..43dcb49f8cdf1a8f412b6c3dfe72ddd4ecb7f395 100644
--- a/utshell-0.5.0/src/version.rs
+++ b/utshell-0.5.0/src/version.rs
@@ -1,15 +1,20 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 use crate::src_common::*;
 use std::convert::TryInto;
 
 /* The distribution version number of this shell. */
 #[no_mangle]
-pub static mut dist_version: *const libc::c_char = b"5.1\0" as *const u8 as *const libc::c_char;
+pub static mut dist_version: *const libc::c_char = b"0.5\0" as *const u8 as *const libc::c_char;
 
 /* It's important that there be no other strings in this file that match the
 regexp `^#define[ 	]*PATCHLEVEL', since that's what support/mkversion.sh
 looks for to find the patch level (for the sccs version string). */
 #[no_mangle]
-pub static mut patch_level: libc::c_int = 4 as libc::c_int;
+pub static mut patch_level: libc::c_int = 0 as libc::c_int;
 
 /* The last built version of this shell. */
 #[no_mangle]
diff --git a/utshell-0.5.0/src/y_tab.rs b/utshell-0.5.0/src/y_tab.rs
index 1d2670bc3d939f9d931a416480e834f09f696489..4314f46350eee1f51b869375ce7276404084beba 100644
--- a/utshell-0.5.0/src/y_tab.rs
+++ b/utshell-0.5.0/src/y_tab.rs
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2025 UnionTech Software Technology Co., Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 #![allow(
     dead_code,
     mutable_transmutes,