case语句
[[email protected] test]# cat case.sh
#!/bin/bash
case $1 in
student|limin|westos)
echo "Welcome,$1"
;;
*)
echo "Sorry!"
;;
esac
[[email protected] test]# sh case.sh
Sorry!
[[email protected] test]# sh case.sh limin
Welcome,limin
[[email protected] test]# sh case.sh aa
Sorry!
[[email protected] test]# cat jiaohu.sh
#!/bin/bash
while true
do
echo -e "
\033[31m A 显示主机IP \033[0m
\033[32m B 显示磁盘剩余空间 \033[0m
\033[33m C 显示系统运行时间 \033[0m
\033[34m Q 退出系统 \033[0m
"
read -p "请输入你的选择：" char
case $char in
a|A)
ifconfig eth0 | grep "inet " | awk '{print $2}'
;;
b|B)
df -h | awk 'NR==2{print "剩余空间大小为："$4}'
;;
c|C)
uptime |awk '{print $3}' | awk -F, '{print $1}' | awk -F: '{print "系统已经运行了"$1"小时"$2"分钟"}'
;;
q|Q)
exit 0
;;
esac
done
