cvlc: 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/cvlc - from package: vlc-nox

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

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