pads: 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/pads - from package: pads

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

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