testRelay: 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/testRelay - from package: livemedia-utils

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

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