编辑代码

#!/bin/bash
echo "please put a num 1-3"
echo "you put the num is: "
read aNUM
case $aNUM in
	1) echo "you choose num is 1"
	;;
	2) echo "you choose num is 2"
	;;
	3) echo "you choose num is 3"
	;;
	*) echo 'you haven`t choose any num!'
	;;
esac

exec /bin/bash