Ubuntu – Ubuntu Saucy: What is the default console tool for parsing XML

I know this is an old question but it showed up as my first result in a Google search for "lxsession defualt application names" so I thought I might at least post something in case other folks end up here for the same reason.

My version does not have the "Running applications" tab but the "Launching applications" tab is where you specify which program will be used for common tasks (web browsing, checking email, writing documents, etc.). For example, if your keyboard has a button that should open a web browser it is here that you set which browser (Chrome, Firefox, Opera, etc.) it should open.

I would download the source and the build dependencies for the Ubuntu version first:

apt-get install dpkg-dev
apt-get build-dep <package>
apt-get source <package>

The unmodified, upstream source the Ubuntu version is based on will be in a file called <pkg>_<ver>.orig.tar.gz (compression scheme may vary) - I would decompress this to one directory (let's call it "dir A"), then download the source to the bug-fixed version into another directory ("dir B"), and then generate a patch for what's changed:

diff -Nur <dirA> <dirB> >/tmp/upgrade.patch

Then change to the directory where apt-get source decompressed the modified Ubuntu version, and apply the patch

patch -p1 </tmp/upgrade.patch

Assuming there weren't many changes between the two upstream versions, and they didn't conflict with any of the Ubuntu packager's changes, this should work. Then edit debian/changelog in the Ubuntu package to give it a new version number, and dpkg-buildpackage should build you a custom version..