sh脚本 执行命令并输出结果

[Hilshire]

不会写sh脚本，网上抄一段记录一下防止以后用到想不起来

#!/bin/bash
#function to display commands
exe() { echo "\$ $@" ; "$@" ; }

exe echo hello world

$ echo hello world
hello world

How to echo shell commands as they are executed