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A list of useful small command-line programs including but beyond those required by POSIX, and where to get them.
My reimplementations and improvements of utilities invented by others.
My priorities for 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.
Helpful small functions for Perl programmers
The learning curves of different operating systems are not what you might expect
A non-expert's introduction to the Nethack dungeon game.
Overview of the software on my website.
Some bugfixes and enhancements for projects that are unmaintained or do not accept patch submissions.
Keeping order with MySQL
What's the deal with UNIX?
Using the shell bash
Some useful commands
The editor emacs