videogen: 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
/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/videogen - from package: videogen

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