在调用shell函数内部的内建器时防止递归

Question

我在bashrc中添加了以下函数：

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

在重新加载.bashrc之后，尝试在临时目录(任何目录)中尝试cd会出现以下递归错误:-

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/

当用户使用cd命令时，我希望方法名是cd，因为我希望执行一些逻辑。

Answer 1

您可以在bash中使用builtin命令：

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