euscale-describe-auto-scaling-groups: 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/euscale-describe-auto-scaling-groups - from package: euca2ools

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

On Debian possible default full paths are:

/usr/bin/euscale-describe-auto-scaling-groups - from package: euca2ools

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