xymond_sample: 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/xymon/server/bin/xymond_sample - from package: xymon

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

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