fxcyberjack: 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/fxcyberjack - from package: fxcyberjack

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

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