> For the complete documentation index, see [llms.txt](https://dev2ero.gitbook.io/notes-cs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev2ero.gitbook.io/notes-cs/operating-system/tong-yong-xi-tong-gai-nian/posix.md).

# POSIX