当函数退出时,bash中是否有可能调用某些命令.我的意思是：
function foo
{
# something like this maybe?
trap "echo \"exit function foo\"" EXIT
# do something
}
foo
是的,你可以捕获RETURN：
原文链接：/bash/384404.html$function foo() {
> trap "echo finished" RETURN
> echo "doing some things"
> }
$foo
会显示
doing some things finished
从man bash对内置陷阱的描述：
If a sigspec is RETURN,the command arg is executed each time a shell function or a script executed with the . or source builtins finishes executing.
