使用shell打印菜单，一键安装Web应用

[root@A04-Test-172 scripts]# more menu.sh 
echo "1.[install lamp]"
echo "2.[install lnmp]"
echo "3.[exit]"

read -p "pls input the num you want: " num

case $num in 
   1)
   if [ -f "/server/scripts/lamp.sh" ];
   then
       echo "start installing lamp"
       /server/scripts/lamp.sh
       echo "lamp is installed"
   else
       echo "the script /server/scripts/lamp.sh  is not exist!"
   fi
   exit
;;
   2)
   if [ -f "/server/scripts/lnmp.sh" ];
   then 
      echo "start installing lnmp"
      /server/scri[ts/lamp.sh
      echo "lnmp is installed"
   else
     echo "the script /server/scripts/lnmp.sh is not exist!"
   fi
   exit
;;
   3)
   exit
;;
   *)
   echo "Input error"
   exit
;;
esac