pcp: 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/pcp - from package: pcp

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

On Debian possible default full paths are:

/usr/bin/pcp - from package: pcp

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

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