Nice diagrams.

"Welcome to the Unix Tree. Here you can browse the source code and manuals of various old versions of Unix. For every file, you can also find related files from other versions: this can help show how the different versions of Unix are related. Most of the Unix versions below come from the Unix Archive."

"For those who do not know, 747's are big flying Unix hosts. At the time, the engine management system on this particular airline was Solaris based. The patching was well behind and they used telnet as SSH broke the menus and the budget did not extend to fixing this. The engineers could actually access the engine management system of a 747 in route. If issues are noted, they can re-tune the engine in air."

"Leap seconds: By international convention, UTC (which is an arbitrary human invention) is kept within 0.9 seconds of physical reality (UT1, which is a measure of solar time) by introducing a "leap second" in the last minute of the UTC year, or in the last minute of June.
Leap seconds don't have to be announced much more than six months before they happen. This is a problem if you need second-accurate planning beyond six months."

Caching for git status in zsh prompt.

Caching for git status in zsh prompt.

"Ben once needed to send his colleagues a graph every week, based on some figures in a MySQL database. He thought the obvious way to do that was to create an ASCII bar chart, using Ruby (I like the use of “obvious”). When you change the pager in MySQL all the output from a query gets passed through the program that you specify (much like the pipe examples above). So here’s the chart (the bars are the wrong length – there’s only so fast a boy can type so I’ve blatantly added the bars in after the event):"

Uzbl follows the UNIX philosophy - "Write programs that do one thing and do it well. Write programs to work together. Write programs to handle text streams, because that is a universal interface."

* very minimal graphical interface. You only see what you need
* what is not browsing, is not in uzbl. Things like url changing, loading/saving of bookmarks, saving history, downloads, ... are handled through external scripts that you write
* controllable through various means such as fifo and socket files, stdin, keyboard and more
* advanced, customizable keyboard interface with support for modes, modkeys, multichars, variables (keywords) etc. (eg you can tweak the interface to be vim-like, emacs-like or any-other-program-like)
* focus on plaintext storage for your data and configs in simple, parseable formats
* Uzbl keeps it simple, and puts you in charge.