profnet_prof: 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_prof - from package: profnet-prof

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

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