mord-long: 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

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/debug/usr/bin/mord-long - from package: scotch-dbg
/usr/bin/mord-long - from package: scotch

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