osgkeystone: 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/osgkeystone - from package: openscenegraph

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

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