cloud-publish-image: 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 CentOS possible default full paths are:

/usr/bin/cloud-publish-image - from package: cloud-utils

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/cloud-publish-image - from package: cloud-utils

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

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