uec-resize-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 Debian possible default full paths are:

/usr/bin/uec-resize-image - from package: cloud-utils

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

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