avologin: command not found

Have You tried accessing the binary with the full path?

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/avologin - from package: rancid

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