在shell函数中调用内置函数时阻止递归

Question

我在bashrc中添加了以下函数： -

function cd(){
        echo "user switching to" $1
        cd $1
}

重新加载.bashrc后，尝试cd在临时目录（任何目录）中给出下面的递归错误： -

user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
bash: echo: write error: Bad address
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/
user switching to temp/

我希望方法名称为cd，因为我想在用户使用cd命令时执行某些逻辑。

Answer 1

您可以在bash中使用builtin命令：

function cd(){
        echo "user switching to $1"
        builtin cd "$@"
}