osgforest: 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/osgforest - from package: openscenegraph

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

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