osgreflect: 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/osgreflect - from package: openscenegraph

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

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