osgcluster: 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/osgcluster - from package: openscenegraph

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

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