dbpmda: 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/dbpmda - from package: pcp

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

On Debian possible default full paths are:

/usr/bin/dbpmda - from package: pcp

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

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