rabbit-command: 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/rabbit-command - from package: rabbit

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

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