mord: 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/mord - from package: scotch

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

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