diff --git a/bash-5.1/r_variables/src/lib.rs b/bash-5.1/r_variables/src/lib.rs
index 3023ddb385c43e9203aa1524161543a06a96efcc..cb0e1fede3d3b90135e2fd865a6ca66b5cb7ca6c 100644
--- a/bash-5.1/r_variables/src/lib.rs
+++ b/bash-5.1/r_variables/src/lib.rs
@@ -1,3 +1,4 @@
+
 use libc::*;
 use r_bash::*;
 use std::ffi::CStr;
@@ -98,6 +99,17 @@ pub unsafe extern "C" fn bind_variable(
                 );
             }
         }
+        
+        vc = (*vc).down;
+    }
+
+    return bind_variable_internal(
+        name,
+        value,
+        (*global_variables).table,
+        0 as libc::c_int,
+        flags,
+    );
 }
 
 #[derive(Copy, Clone)]
@@ -121,3 +133,36 @@ macro_rules! vc_istempenv {
         ((*$vc).flags & VC_TEMPFLAGS  as libc::c_int) == VC_TEMPFLAGS as libc::c_int
     }
 }
+
+static mut last_table_searched: *mut HASH_TABLE = 0 as *const HASH_TABLE
+    as *mut HASH_TABLE;  
+
+#[inline]
+unsafe extern "C" fn atoi(mut __nptr: *const libc::c_char) -> libc::c_int {
+    return strtol(
+        __nptr,
+        0 as *mut libc::c_void as *mut *mut libc::c_char,
+        10 as libc::c_int,
+    ) as libc::c_int;
+}
+
+unsafe extern "C" fn create_variable_tables() {
+    if shell_variables.is_null() {
+        // new_var_context 下面会实现
+        global_variables = new_var_context(
+            0 as *mut libc::c_void as *mut libc::c_char,
+            0 as libc::c_int,
+        );
+        shell_variables = global_variables;
+        (*shell_variables).scope = 0 as libc::c_int;
+        //hash_create  为外部函数
+        (*shell_variables).table = hash_create(VARIABLES_HASH_BUCKETS!() as libc::c_int);
+    }
+    if shell_functions.is_null() {
+        shell_functions = hash_create(FUNCTIONS_HASH_BUCKETS!() as libc::c_int);
+    }
+    // debugger
+    if shell_function_defs.is_null() {
+        shell_function_defs = hash_create(FUNCTIONS_HASH_BUCKETS!() as libc::c_int);
+    }
+}