Free hitchhikers guide software for linux

The Linux-Mobile-Guide is a guide for users of Linux and laptops, notebooks, PDAs and other mobile computers.
This guide was former known as Linux-Laptop-HOWTO but was now extended to cover Linux and mobile computer devices in general (laptops, PDAs, mobile cell phones, digital cameras, calculators, wearables, ...). These devices are different from desktop/tower computers.
They use certain hardware such as PCMCIA cards, infrared and BlueTooth ports, batteries, docking stations. Hardware parts cannot be changed as easily as in a desktops, e.g. the graphics card. Often their hardware is more limited (e.g. disk space, CPU speed).
Hardware support for Linux (and other operating systems) on mobile devices is sometimes more limited (e.g. graphics chips, internal modems). They often use specialized hardware, hence finding a driver can be more difficult. Many times they are used in changing environments, so there is a need for multiple configurations and additional security strategies.
The Linux-Mobile-Guide explains installation methods for laptops and PDAs and configurations for different (network) environments, security issues for portable computers and much more. TuxMobil is the origin of the Linux-Mobile-Guide and provides always the latest issue available for download.
Enhancements:
- A link to keytouch has been made in the Extra Keys section.

codavaj is javadoc in reverse. A seemingly useless tool. Arguably of interest only to the most hardcore java hackers. A "must have" in every geeks software toolbox. ( hitchhikers guide entry Nr. 151776 ).
Codavaj is a reverse engineering tool with focus on Javadoc. Currently codavaj is distributed as a command line tool ( codavaj.cmd - using org.codavaj.Main class ). A 100% java tool.
You can:
- convert an entire local javadoc tree into java source code.
- download an entire remote javadoc tree via http(s).
- derive a Reflection-like API based on information derived from a javadoc tree.
Codavaj works by converting javadoc HTML into XML by using Nekohtml and then successively deriving class information from the XML using XPATH queries ( using dom4j ).
Not because i lost the sources for some code - but miraculously still had the javadoc for it! This wouldnt help much anyway because codavaj leaves you with a TODO for each method implementation.
For me this was simply an intellectual challenge - a side battle in a hobby programmers grand master plan. As a bonus i managed to improve my XPATH query skills a bit. It took me 2 full working weeks to get the initial version out. If I needed this once, then theres bound to be someone out there who might like to use it, for whatever reason. It probably will save them the 2 weeks too.
Enhancements:
- New features include the ability to parse javadocs generated by the 1.5 javadoc tool.
- The known limitations are that enums and generics constructs are not supported yet.
- Several minor bugs in parsing constant values like "NaN" and "0d/0d" were fixed.
- A Linux/Unix-like command line tool was added.