ffmvforce: 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/ffmvforce - from package: joystick

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

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