camqadm.pyo: 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/lib/python2.6/site-packages/celery/bin/camqadm.pyo - from package: python-celery

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