dpm: 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/sbin/dpm - from package: dpm-server-mysql

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

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