linux-tutorial/codes/shell/示例脚本/菜单/使用select命令.sh

#!/bin/bash

# using select in the menu

function diskspace {
    clear
    df -k
}

function whoseon {
    clear
    who
}

function menusage {
    clear
    cat /proc/meminfo
}

PS3="Enter option:"
select option in "Display disk space" "Display logged on users" "Display memory usage" "Exit program"
do
case $option in
    "Exit program")
        break ;;
    "Display disk space")
        diskspace ;;
    "Display logged on users")
        whoseon ;;
    "Display memory usage")
        menusage ;;
    *)
        clear
        echo "Sorry, wrong selection" ;;
esac
done
clear