tsudpreceive: 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/tsudpreceive - from package: opencaster

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

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