pcc: command not found

Have You tried accessing the binary with the full path?

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/pcc - from package: pcc

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