pbn2dds: 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/pbn2dds - from package: pescetti

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

Error in other languages:
pbn2dds: bevel nie gevind nie
pbn2dds: comandă negăsită
pbn2dds: comando não encontrado
pbn2dds: commande introuvable
pbn2dds: command not found
pbn2dds: käsku ei ole
pbn2dds: không tìm thấy lệnh
pbn2dds: komanda nerasta
pbn2dds: Kommando nicht gefunden.
pbn2dds: kommandot finns inte
pbn2dds: komut yok
pbn2dds: nie znaleziono polecenia
pbn2dds: níor aimsíodh an t-ordú
pbn2dds: no se encontró la orden
pbn2dds: no s'ha trobat l'ordre
pbn2dds: opdracht niet gevonden
pbn2dds: parancs nem található
pbn2dds: perintah tidak ditemukan
pbn2dds: príkaz nenájdený
pbn2dds: příkaz nenalezen
pbn2dds: команда не найдена
pbn2dds: командата не е открита
pbn2dds: 命令找不到
pbn2dds: コマンドが見つかりません