osgmultitexture: 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/osgmultitexture - from package: openscenegraph

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

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