jlogin: 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/jlogin - from package: rancid

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

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