cli_send_processor_xrl: 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/lib/xorp/bin/cli_send_processor_xrl - from package: xorp

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

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