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A list of useful small command-line programs including but beyond those required by POSIX, and where to get them.
Reimplementations and improvements of utilities invented by others.
Hints on writing good utility programs, good documentation and good diagnostic messages.
Usage of the git version control system in one diagram
The concept behind the Advanced Linux Sound Architecture, its configuration and a troubleshooting tool.
How to set up a local database, and some Perl scripts for annotating local files.
The learning curves of different operating systems are not what you might expect
A non-expert's introduction to the Nethack dungeon game.
Test your knowledge of UNIX utilities.
Overview of the software on my website.
Some patches I have not (yet) submitted.