filesystem hierarchy
Download
Skip this Video
Download Presentation
Filesystem Hierarchy

Loading in 2 Seconds...

play fullscreen
1 / 8

Filesystem Hierarchy - PowerPoint PPT Presentation


  • 110 Views
  • Uploaded on

Filesystem Hierarchy. Dr. Michael L. Collard www.sdml.info/collard www.sdml.info/collard/linux [email protected] Many Types of Files. Application programs System programs Libraries System configuration files Include files User data files Program configuration files

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Filesystem Hierarchy' - elisa


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
filesystem hierarchy

Filesystem Hierarchy

Dr. Michael L. Collard

www.sdml.info/collard

www.sdml.info/collard/linux

[email protected]

many types of files
Many Types of Files
  • Application programs
  • System programs
  • Libraries
  • System configuration files
  • Include files
  • User data files
  • Program configuration files
  • Devices (i.e., /dev)
  • Runtime information (i.e., /proc)
  • Distribution-installed files and locally-installed files
filesystem hierarchy1
Filesystem Hierarchy
  • Standard directories (and filenames), and where they are located
  • Historical precedents from Unix systems
  • Each distribution could choose differently
  • Consistency among various Unixes: important
  • Consistency among various Linux distributions: more important
filesystem hierarchy standard
Filesystem Hierarchy Standard
  • Defines main directories and contents of them for Linux
  • Based on common practice in Unix
  • Latest version 2.3 (Jan 29, 2004)
  • Created by Free Standards Group
    • members include: HP, Red Hat, IBM, and Dell
    • Merged with OSDL in 2007: Linux Foundation
    • Where Linus works
slide5
FHS
  • Although a standard, not all Linux distributions follow it completely (even some members)
  • Because now part of a Linux initiative, some Unix-like systems have major differences
    • E.g., Mac OS X, directories /Home, /Library, and /Applications
  • However, still a good starting point towards understanding
fhs rationale
FHS Rationale
  • Issues for installed files and directories
    • Software to predict
    • Users to predict
  • General guidelines
    • shareable vs. unsharable, i.e., one more than one host or on one host
    • static vs. variable, i.e., do the contents change
  • Reasons for this organization?
important directories
Important Directories
  • /
  • /boot
  • /home
  • /root
  • /bin
  • /lib
  • /etc
  • /tmp
  • /dev
  • /usr, /usr/bin, /usr/include, /usr/local, /usr/share
  • /var, /var/log
  • /opt
changes to historical practice
Changes to Historical Practice
  • Historically, /usr and /etc had both static and variable files
  • /var was created to store variable files
  • Moved most of the variable files in /usr to /var
  • Still working on moving variable files in /etc to /var
ad