pampick: 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/pampick - from package: netpbm-progs

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

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