osggraphicscost: 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/osggraphicscost - from package: openscenegraph

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

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