[root@linux-server script]# vim while.sh
#!/usr/bin/env bash
#
# Author:
while 1>0
do
cat <<-EOF
+-------------------------------------------------------------------------+
| System_tools V1.0 |
+-------------------------------------------------------------------------+
| a. Stop And Disabled Firewalld. |
| b. Disabled SELinux Secure System. |
| c. Install Apache Service. |
| d. Quit |
+-------------------------------------------------------------------------+
EOF
echo " Please input your select: " && read var
case "$var" in
"a")
systemctl stop firewalld && systemctl disable firewalld
;;
"b")
sed -ri s/SELINUX=enforcing/SELINUX=disabled/g /etc/selinux/config
;;
"c")
yum -y install httpd httpd-tools
;;
"d")
exit
;;
*)
echo "请按照上方提供的选项输入!!!"
;;
esac
if [ $? -eq 0 ];then
clear
else
echo "Warning: Your program exist ERROR!!!"
break
fi
done
[root@linux-server script]# chmod +x while.sh
[root@linux-server script]# ./while.sh
标签：script,server,案例,while,linux,echo,+--------------------------------------------- From： https://blog.51cto.com/u_16317072/8452457