cloud-publish-ubuntu: 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/cloud-publish-ubuntu - from package: cloud-utils

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

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