euare-rolegetpolicy: command not found

Have You tried accessing the binary with the full path?

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/euare-rolegetpolicy - from package: euca2ools

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

On Debian possible default full paths are:

/usr/bin/euare-rolegetpolicy - from package: euca2ools

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