- #! /bin/sh
- #while 语句
- echo "enter passwd"
- read passwd
- while [ $passwd != "aaa" ];do
- echo "sorry try again"
- read passwd
- done
- #for 语句
- #! /bin/bash
- for i in a b c; do
- echo "$i\\n"
- done
- #case 语句
- #! /bin/sh
- echo "Enter a number"
- read number
- case $number in
- 1)
- echo "you number is 1"
- ;;
- 2)
- echo "yo number is 2"
- ;;
- *)
- exit 1
- ;;
- esac
- #if else elif fi
- #! /bin/sh
- echo "Is it morning? Please answer yes or no."
- read YES_OR_NO
- if [ "$YES_OR_NO" = "yes" ]; then
- echo "Good morning!"
- elif [ "$YES_OR_NO" = "no" ]; then
- echo "Good afternoon!"
- else
- echo "Sorry, $YES_OR_NO not recognized. Enter yes or no."
- exit 1
- fi
- exit 0
- #该片段来自于http://www.codesnippet.cn/detail/220120131819.html
来源: http://www.codesnippet.cn/detail/220120131819.html