odbxtest.master: 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/odbxtest.master - from package: opendbx-utils

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

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