celeryd.pyc: 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"

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