Documentation
- TLDR (browser) TLDR (GitHub)
- covers multiple operating systems
- provides examples of command usage
- Unix Toolbox
- covers UNIX/Linux/BSD
- includes topic overviews and command details
- The Linux Documentation Project
- HOWTO (short article on a specific rask)
- Guide (longer article with broader coverage)
- GNU
- covers GNU software
- more comprehensive and easier to read than man pages
- Distribution Specific
- Debian Linux
- FreeBSD