dma: 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/sbin/dma - from package: dma

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

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