pmieconf: 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/pmieconf - from package: pcp

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

On Debian possible default full paths are:

/usr/bin/pmieconf - from package: pcp

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

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