Basic Linux Tutorial

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Introduction to Linux History of Linux Linux distributions Advantages of Linux Difference between Linux and Windows

» Linux File System » Root Directory » Bin Directory » Configuration Directories » Data Directories » Memory Directories » Unix System Resources

Basic Linux Commands Login Related Command User Login Related Commands General Orientation Commands

File Managing Commands Working with Directories Working with Files Working with File Contents Filter Commands

File Permission & Access Ownership of Linux files Permissions of Linux files Changing file permissions Absolute or Numeric Mode Symbolic Mode Changing Owners and Groups

Input & Output Redirection Standard Output Redirection Standard Input Redirection Standard Error Redirection

Piping The T-Junction I/O Redirection & Piping

Other Linux Commands ARPA Services Commands Berkeley Services Commands Process Control Command Offline file Storage

Vi Editor Modes Used in Vi Editor Starting and Stopping Vi Cursor Movement Inserting and Deleting Text Replacing Text Search and Replace Cut, Copy, and Paste Importing and Exporting Text Configuring Vi Options

Shell Scripting Variables Passing Data Through Environment Variables Special Shell Variables Command Line Arguments The shift Command The read Command The echo Command

Branching The test Command Testing Numeric & String Values Testing Files & Logical Operators The if then fi Structure The if then else fi Structure The case Structure

Loops The let command The while-do-done Loop The until-do-done Loop The for-do-done Loop

Root Directory of Linux

Root Directory of Linux

All of the file system is viewed with reference to the root directory. The name root comes from the logical position of this directory. This is the top-level directory in the tree structure and hence the name root is used for it. It is represented by a slash character (/). It must be kept in mind that the root directory or any other directory is not related to physical disks in any respect. The directory structure is just a logical arrangement regardless of the number of disks in your system or how these disks are partitioned.“super user” is usually the only user allowed to write to that directory.

The contents of the root directory.

Root directory structure

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