avorancid: 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/avorancid - from package: rancid

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

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