pandora_agent: 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/sbin/pandora_agent - from package: pandorafms-agent

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

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