osgfilecache: 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/osgfilecache - from package: openscenegraph

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

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