--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bsd-debug.rst	Fri Jan 20 18:44:02 2012 +0200
@@ -0,0 +1,18 @@
+.. -*- coding: utf-8 -*-
+
+======================
+ Debugging under BSD.
+======================
+
+dtrace.
+=======
+
+  http://en.wikipedia.org/wiki/Dtrace
+                Wikipedia home page.
+
+Truss.
+======
+
+  http://en.wikipedia.org/wiki/Truss_%28Unix%29
+                Wikipedia home page.
+

--- a/game.rst	Fri Jan 20 11:48:47 2012 +0200
+++ b/game.rst	Fri Jan 20 18:44:02 2012 +0200
@@ -34,4 +34,92 @@
 
 3D racing cars simulator game using OpenGL.
 
+SuperTuxKart.
+-------------
+::
 
+  $ sudo apt-get install supertuxkart
+
+Games for Linux.
+================
+
+Pingus.
+-------
+
+Pingus is a free Lemmings-like game covered under the GNU GPL::
+
+  $ sudo apt-get install pingus
+
+FreeCiv.
+--------
+
+Civilisation-like turn based game::
+
+  $ sudo apt-get install freeciv
+
+MegaGlest.
+----------
+
+MegaGlest is a free and open source 3D real-time strategy (RTS) game, where you
+control the armies of one of seven different factions: Tech, Magic, Egyptians,
+Indians, Norsemen, Persian or Romans. The game is setup in one of 16 naturally
+looking settings, which -like the unit models- are crafted with great
+appreciation for detail::
+
+  $ sudo apt-get install megaglest
+
+  http://megaglest.org
+                home page
+  http://en.wikipedia.org/wiki/Megaglest
+                wiki page
+
+Warzone2100.
+------------
+
+In Warzone 2100 you command the forces of “The Project” in a battle to rebuild
+the world after mankind has almost been destroyed by nuclear missiles.
+
+The game offers campaign, tutorial, multi-player and single-player skirmish
+modes.
+
+An extensive tech tree with over 400 different technologies, combined with the
+unit design system, allows for a wide variety of possible units and tactics::
+
+  $ sudo apt-get install warzone2100
+
+extremetuxracer.
+----------------
+
+GPL-version of TuxRacer::
+
+  $ sudo apt-get install extremetuxracer
+  $ etracer
+
+Frozen Bubble.
+--------------
+
+FlightGear.
+-----------
+
+Sophisticated open source flight simulator framework. FlightGear uses the
+SimGear simulation engine. Some of the aircraft models available in FlightGear
+include gliders, helicopters, airliners, fighter jets, etc. Weather effects such
+as clouds, lightning effects and time of the day is illustrated::
+
+  $ sudo apt-get install flightgear fgrun
+
+ManiaDrive.
+-----------
+
+Blobwars.
+---------
+
+  $ sudo apt-get install blobwars
+
+Nethack.
+--------
+::
+
+  $ sudo apt-get install nethack
+  $ sudo apt-get install glhack
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/linux-debug.rst	Fri Jan 20 18:44:02 2012 +0200
@@ -0,0 +1,42 @@
+.. -*- coding: utf-8 -*-
+
+========================
+ Debugging under Linux.
+========================
+.. contents::
+
+ltrace.
+=======
+
+  http://www.ltrace.org/
+                home page
+  https://sourceforge.net/projects/ltrace/
+                SourceForge home page
+  http://en.wikipedia.org/wiki/Ltrace
+                Wikipedia page.
+  http://freecode.com/projects/ltrace
+                Freecode home page.
+
+strace.
+=======
+::
+
+  $ strace -o $CMD.log -e trace=open,close $CMD
+
+See:
+
+  http://en.wikipedia.org/wiki/Strace
+                Wikipedia home page.
+
+lsof.
+=====
+
+htop.
+=====
+
+systemtap.
+==========
+
+  http://en.wikipedia.org/wiki/SystemTap
+                Wikipedia home page.
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/macosx-debug.rst	Fri Jan 20 18:44:02 2012 +0200
@@ -0,0 +1,26 @@
+.. -*- coding: utf-8 -*-
+
+========================
+ Debugging in Mac OS X.
+========================
+
+dtruss.
+=======
+
+  $ dtruss df -h     # run and examine the "df -h" command
+  $ dtruss -p 1871   # examine PID 1871
+  $ dtruss -n tar    # examine all processes called "tar"
+
+dtrace.
+=======
+::
+
+  $ man -k dtrace
+  $ dapptrace
+
+See:
+
+  http://en.wikipedia.org/wiki/Dtrace
+                Wikipedia home page.
+
+