osgvertexattributes: command not found

Have You tried accessing the binary with the full path?

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/osgvertexattributes - from package: openscenegraph

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