pminfo: 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/pminfo - from package: pcp

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

On Debian possible default full paths are:

/usr/bin/pminfo - from package: pcp

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

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