> For the complete documentation index, see [llms.txt](https://juanbermudez.gitbook.io/aprendiendolinux/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://juanbermudez.gitbook.io/aprendiendolinux/usuarios-y-grupos/umask.md).

# umask

* [umask](https://manpages.debian.org/bookworm/manpages-dev/umask.2.en.html) - Establecer permisos de archivo predeterminados.