> For the complete documentation index, see [llms.txt](https://olb.gitbook.io/linux-essentials-certification/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://olb.gitbook.io/linux-essentials-certification/1.linux_community.md).

# 1.Linux community

- [1.1 Linux evolution](https://olb.gitbook.io/linux-essentials-certification/1.linux_community/1.1-linux_evolution.md)
- [1.2 Open Source applications](https://olb.gitbook.io/linux-essentials-certification/1.linux_community/1.2-open_source_applications.md)
- [1.3 Open Source licensing](https://olb.gitbook.io/linux-essentials-certification/1.linux_community/1.3-open_source_licensing.md)
- [1.4 ICT skills and knowledge](https://olb.gitbook.io/linux-essentials-certification/1.linux_community/1.4-ict_skills.md)