Linux Free Course Module 3 Chapter 3: Grep Command
Grep
Basics of Grep Command
grep command
grep stands for Global Regular Expression Parser
Use grep to search file for a pattern and display both matching and non-matching...
Linux Free Course Module 3 Chapter 2: General Purpose Utilities
General Purpose Utilities
Calendar: cal command
Calendar: cal command
cal command is used to display the calendar.
Syntax
cal
Examples
cal
In general, if no options are given, cal displays the...
Linux Free Course Module 3 Chapter 1: File Management, File Attributes...
File Management, File Attributes & Permissions
File Management
In Linux file management, we will learn about
Creating files
Copying files
Moving files
Removing files
Display the...
Linux Free Course Module 2 Chapter 5: SUBSHELL
SUBSHELL
SUBSHELL
• When you log into a LINUX system, you execute an initial login shell.
• This initial shell executes any simple commands that you enter.
Current(parent)...
Linux Free Course Module 2 Chapter 4: Meta Characters
Meta Characters
INTRODUCTION & CLASSIFICATION
Shell metacharacters are characters that are handled specially by the shell.
When you enter a command, the shell scans it...
Linux Free Course Module 2 Chapter 3 BUILT-IN & EXTERNAL COMMANDS
BASH SHELL BUILT-IN & EXTERNAL COMMANDS
INTERNAL AND EXTERNAL COMMANDS
We can classify all of the Linux commands into two types - Internal And External.
Internal commands are the...
Linux Free Course Module 2 Chapter 2 SHELL VARIABLES
LINUX SHELL VARIABLES
• There are two types of variables: LOCAL VARIABLE & ENVIRONMENT VARIABLE
Environmental variables are set by the system and can usually be...
Linux Free Course Module 2 Chapter 1: LINUX BASH SHELL
LINUX BASH SHELL
A shell is a program that sits between you and the LINUX operating system.
In the next segment, we will study...
Module 1 Linux Free Course: Chapter 6: Basics of Linux File...
Basics of Linux File System
FILE SYSTEM & NAMESPACE
To begin the journey of any O/S we have to first understand the file...
Module 1 Linux Free Course: Chapter 5: Shell : Login, Basic...
Shell: Login, Basic Commands & Usage
Logging on Linux machine
Logging in to a Unix machine requires an account on that system.
A...
