malrul: 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 CentOS possible default full paths are:

/usr/bin/malrul - from package: malaga

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/malrul - from package: malaga-bin

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

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