xpad: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/xpad - from package: xpad

You may install the required package with command apt-get install {package}

Error in other languages:
xpad: bevel nie gevind nie
xpad: comandă negăsită
xpad: comando não encontrado
xpad: commande introuvable
xpad: command not found
xpad: käsku ei ole
xpad: không tìm thấy lệnh
xpad: komanda nerasta
xpad: Kommando nicht gefunden.
xpad: kommandot finns inte
xpad: komut yok
xpad: nie znaleziono polecenia
xpad: níor aimsíodh an t-ordú
xpad: no se encontró la orden
xpad: no s'ha trobat l'ordre
xpad: opdracht niet gevonden
xpad: parancs nem található
xpad: perintah tidak ditemukan
xpad: príkaz nenájdený
xpad: příkaz nenalezen
xpad: команда не найдена
xpad: командата не е открита
xpad: 命令找不到
xpad: コマンドが見つかりません