eulb-set-lb-policies-of-listener: 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/eulb-set-lb-policies-of-listener - from package: euca2ools

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

On Debian possible default full paths are:

/usr/bin/eulb-set-lb-policies-of-listener - from package: euca2ools

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