erancid: 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/erancid - from package: rancid

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

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