总的来说,case是一个判断语句 ,比if更加容易理解一点。
case 语句格式
case in 变量
值1)
内容 ;;
值2)
内容 ;;
esac
注意:每个内容后面都需要添加 ;; ,可以跨行也可以同行写。
实例:根据用户输入的选择执行语句。
#!/bin/bash -
# 打印选择菜单
cat <<EOF
Option:
1) restart networking service.
2) start networking service.
3) stop networking service.
*) exit.
EOF
read -p "Please enter a option:" number
# 使用case语句对参数进行判断
case $number in
1)
echo "The Networking service is restart,wait......" ;;
2)
echo "The Networking service is start,wait......" ;;
3)
echo "The Networking service is stop,wait......" ;;
*)
echo "exit." ;;
esac
[[email protected] scripts]# bash case.sh
Option:
1) restart networking service.
2) start networking service.
3) stop networking service.
*) exit.
Please enter a option:1
The Networking service is restart,wait......
版权所有:arppinging
原文地址:http://blog.51cto.com/xiaowangzai/2090947
时间: 2024-10-16 16:31:17