dvbtraffic: 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/dvbtraffic - from package: dvb-apps

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

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