streamtuner2: 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/streamtuner2 - from package: streamtuner2

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

Error in other languages:
streamtuner2: bevel nie gevind nie
streamtuner2: comandă negăsită
streamtuner2: comando não encontrado
streamtuner2: commande introuvable
streamtuner2: command not found
streamtuner2: käsku ei ole
streamtuner2: không tìm thấy lệnh
streamtuner2: komanda nerasta
streamtuner2: Kommando nicht gefunden.
streamtuner2: kommandot finns inte
streamtuner2: komut yok
streamtuner2: nie znaleziono polecenia
streamtuner2: níor aimsíodh an t-ordú
streamtuner2: no se encontró la orden
streamtuner2: no s'ha trobat l'ordre
streamtuner2: opdracht niet gevonden
streamtuner2: parancs nem található
streamtuner2: perintah tidak ditemukan
streamtuner2: príkaz nenájdený
streamtuner2: příkaz nenalezen
streamtuner2: команда не найдена
streamtuner2: командата не е открита
streamtuner2: 命令找不到
streamtuner2: コマンドが見つかりません