Question

shell中的break和exit的区别

Answer 1

bash shell script (bash脚本)中，break是退出一层循环，break 2是退出2层循环（当有相互嵌套时）,....

break: break [n]
Exit for, while, or until loops.

Exit a FOR, WHILE or UNTIL loop. If N is specified, break N enclosing
loops.

Exit Status:
The exit status is 0 unless N is not greater than or equal to 1.
脚本中的exit的作用是整个脚本退出了，逻辑上exit之后的命令不再运行。