It turns out amazingly uneasy to make a screenshot on which the mouse cursor (pointer) is visible. No one of the typical Linux/Ubuntu screen capture programs does that. I even saw suggestions to run the application inside vmware or virtualbox to make such a screenshot!

There is a better alternative.

Apart from using Mercurial for version-control I found a few cases, where it is fairly suitable as a ... backup tool.

I am maintaining some MoinMoin wiki. MoinMoin saves its data using the disk files. I won't delve into all details now, but my wiki instance is kept in a directory with subdirs for configuration data, runtime scripts, plugins and - finally - the wiki data - pages written by users, user preferences, and such.

My initial backup procedure was simple - just tar the directory, compress and copy to the remote machine. Slightly troublesome and ... giving only the last version for possible restore. Plus noticeable transfer every time new base backup is made.

Mercurial provided very nice alternative:

Nginx is my preferable webserver, known for its small memory footprint and great performance. Serendipity is a reasonably complete blog server which I picked over WordPress because it works with PostgreSQL database. I failed to find instructons how to run those two together, so here is my description. I use Ubuntu, so some details (like package naming and the way they are installed) are Debian/Ubuntu-like, but it should not be too difficult to follow on another distribution.