前端之家收集整理的这篇文章主要介绍了
Bash陷阱退出功能，
前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。
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
我希望打印退出函数foo.
@H_
403_6@
是的,你可以捕获RETURN：
- $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.
