celeryctl.pyc: 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"

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