在脚本中使用dialog命令

#!/bin/bash

# using dialog to create a menu

temp=`mktemp -t test.XXXXXX`
temp2=`mktemp -t test2.XXXXXX`

function diskspace {
    df -k > $temp
    dialog --textbox $temp 20 60
}

function whoseon {
    who > $temp
    dialog --textbox $temp 20 50
}

function menusage {
    cat /proc/meminfo > $temp
    dialog --textbox $temp 20 50
}

while [ 1 ]
do
    dialog --menu "Sys Admin Menu" 20 30 10 1 "Display disk space" 2 "Display users" 3 "Display memory usage" 0 "Exit" 2> $temp2
    if [ $? -eq 1 ]
    then
        break
    fi

    selection=`cat $temp2`

    case $selection in
    1)
        diskspace;;
    2)
        whoseon;;
    3)
        menusage;;
    0)
        break;;
    *)
        dialog --msgbox "Sorry,invalid selection" 10 30
    esac
done
rm -f $temp 2> /dev/null
rm -f $temp2 2> /dev/null