Basic Linux Tutorial

Computer Tutorial

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

Basic Linux Commands

Opening the shell prompt, you must use these commands. Enter the command name and then press the Enter key to execute it. If the command is valid, the shell executes it and displays the result produced by the command.

date

date shows the current date and time on the system.

Synopsis :

date [options] .... [+format]

Example :

» Date without arguments writes the date and time to the standard output in the form.
$ date
Wed Jul 13 01:49:10 PDT 2016
» date can also be used to display specific fields of the date.
$ date ”+%H %M”
14 12

cal

cal displays a simple calendar. If arguments are not specified, the current month is displayed with the current day highlighted.

Synopsis :

$cal [options]

Example :

man

man command shows all information about followed by a command. Press q to quit the manpage.

Synopsis :

$man < command name >

Basic Linux Tutorial

Basic Linux Commands