profnet_md: 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/profnet_md - from package: profnet-md

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

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