osgthirdpersonview: 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/osgthirdpersonview - from package: openscenegraph

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

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