datanommer-dump: 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 CentOS possible default full paths are:

/usr/bin/datanommer-dump - from package: datanommer-commands

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/datanommer-dump - from package: python-datanommer.commands

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

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