> Wo finde ich eine Übersicht gültiger GPX-Tags?
http://wiki.openstreetmap.org/index.php/De:Map_Features
http://wiki.openstreetmap.org/index.php/De:Howto_Map_A
Ist es das?

That explains it, thanks.
Using -r or --regexp-extended works now in my "GNU sed Version 4.1.5"
and shows interesting results.
Heinz

Hi,
Can you please give an example of the output? On my box sed doesn't have an -E option and complains.
Please explain what the script should do. Thanks
Heinz

thanks, I'll use that.