roarmon: 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/bin/roarmon - from package: roarclients

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

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