> For the complete documentation index, see [llms.txt](https://0xn3va.gitbook.io/cheat-sheets/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://0xn3va.gitbook.io/cheat-sheets/linux/overview/file-descriptor.md).

# File Descriptor

![](https://drawings.jvns.ca/drawings/filedescriptors.jpeg)