osgsequence: 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/osgsequence - from package: openscenegraph

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

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