euca-enable-vgw-route-propagation: 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/euca-enable-vgw-route-propagation - from package: euca2ools

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

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