Linux: exit

用来退出对脚本的执行

zhiyong@zhiyong-Inspiron-5423:~/Learn$ cat pp.sh 
#! /bin/bash

echo "hello world!"
exit  #退出对当前脚本的执行，下面的命令都不会被执行
echo "hello world!"

zhiyong@zhiyong-Inspiron-5423:~/Learn$ sh pp.sh 
hello world!  #只执行exit之前的命令
zhiyong@zhiyong-Inspiron-5423:~/Learn$