mlink: 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/bin/mlink - from package: fastlink

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

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