osgviewerGLUT: 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/osgviewerGLUT - from package: openscenegraph

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

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