arancid: 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/lib/rancid/bin/arancid - from package: rancid

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

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