dell streak with tegra??Well, some time ago I found the extract-files.sh for a tegra tablet called dell streak, so maybe it'll be more useful than the file that you have. Here are the links(2 parts):
http://www.tabletroms.com/forums/blogs/giveen/39-extract-files-sh-part-1.html
http://www.tabletroms.com/forums/blogs/giveen/40-extract-files-sh-part-2.html
I hope it will help.
r u sure??
http://www.gsmarena.com/dell_streak-3353.php