> For the complete documentation index, see [llms.txt](https://hanfak.gitbook.io/workspace/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hanfak.gitbook.io/workspace/operating-system/unix-file-system.md).

# Unix File System

* <https://refspecs.linuxfoundation.org/FHS\\_3.0/fhs/index.html>

## Summmary

* 📂 /bin:
  * Contains essential system binaries that are required for booting and basic system operations.
* 📂 /boot:
  * Contains files required for booting the system, including the Linux kernel, initial RAM disk, and boot loader files.
* 📂 /dev:
  * Contains device files that represent hardware devices connected to the system.
* 📂 /etc:
  * Contains system-wide configuration files for various applications and services.
* 📂 /home:
  * Contains user home directories, where user-specific data and settings are stored.
* 📂 /lib:
  * Contains shared libraries required by system binaries and other executables.
* 📂 /media:
  * Mount point for removable media such as USB drives, CDs, DVDs, etc. 📀💾
* 📂 /mnt:
  * Mount point for temporary file systems, such as network file systems.
* 📂 /opt:
  * Contains optional software packages that are not part of the default system installation.
* 📂 /proc:
  * Contains virtual files that represent system and process information.
* 📂 /root:
  * Home directory for the root user.
* 📂 /run:
  * Contains temporary files that are created by system daemons and other processes.
* 📂 /sbin:
  * Contains system binaries that are required for system administration.
* 📂 /srv:
  * Contains data for services provided by the system.
* 📂 /sys:
  * Contains virtual files that represent the system's hardware devices and drivers.
* 📂 /tmp:
  * Contains temporary files that are created by applications and system processes.
* 📂 /usr:
  * Contains user binaries, libraries, documentation, and source-code for the system.
* 📂 /var:
  * Contains variable files, such as log files, spool directories, and caches for various applications and services. 📈🗂️💻