cinder-manage: 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 Debian possible default full paths are:

/usr/bin/cinder-manage - from package: cinder-common

You may install the required package with command apt-get install {package}

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