菜单选择脚本

#!/bin/bash
RETVAR=0
path=/server/scripts
[ ! -d "$path" ] && mkdir $path -p
function Usage(){
echo "Usage:$0 argv"
return 1
}
function InstallService(){
if [ $# -ne 1 ];then
Usage
fi
local RETVAL=0
echo "start installing ${1}."

sleep 2;
if [ ! -x "$path/${1}.sh" ];then
echo "$path/${1}.sh does not exist or can not be exec."
return 1
else
$path/${1}.sh
return $RETVAL
fi
}

function main(){
PS3="`echo pls input the num you want:`"
select var in "Install lamp" "Install lnmp" "exit"
do
case "$REPLY" in
1)
InstallService lamp
RETVAL=$?
;;
2)
InstallService lnmp
RETVAL=$?
;;
3)
echo bye
return 3
;;
*)
echo "the num you input must be {1|2|3}"
echo "Input Error"
esac
done
exit $RETVAL
}
main