osgwidgetlabel: 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/osgwidgetlabel - from package: openscenegraph

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

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