ColPack: 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/ColPack - from package: ColPack-cli

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

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