Show logs with difference each commit introduces
gitwhatchanged <option> ...
gitwhatchanged -p v2 .6 .12 . . include/scsi drivers/scsi Show as patches the commits since version v2.6 .12 that changed any file in the include/scsi or drivers/scsi subdirectories
gitwhatchanged --since="2 weeks ago" --gitk Show the changes during the last two weeks to the file gitk . The " --" is necessary to avoid confusion with the branch named gitk