rabbiter: 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/rabbiter - from package: rabbiter

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

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