Gain insights into the power of the command line. Learn about Linux BASH through theoretical and practical exercises, mastering essential concepts and commands for efficient programming.

Ever wondered why command line is still in use even when there are hundreds of human-friendly GUI’s and tools available? Everyone in the programmer's world would agree on one thing: Command Line is far more powerful than any GUI. It provides a richer experience in terms of speed and expressiveness.

For beginners, it might be hard to appreciate its beauty and a little challenging to shift from an interactive interface to a blank box with just a “$” sign showing that keeps prompting the user to enter complex commands if you want to get something done. This is why we felt the need to build a course which could help the user overcome his/her fear of using the terminal (we have all been there).

The objective of this course is to help you get a strong grip over Linux, mainly focusing on BASH. You will be covering both, the theoretical and practical sides. First, you will learn a bunch of concepts necessary to understand things and then study some nifty commands to get useful things done out of them.

Bash for Programmers

# ls
## Definition: 
`ls` is the most frequently used commands in Linux. This command prints the content of current directory on the terminal in an alphabetical order. This command can be used along with many other options to show additional informtation as well. By default, it is set to show contents of the current directory but we can also use this command to gain information about any file
## Syntax: 
```
ls [option] file_name
```

## Options: 
| **Option** | **Meaning** |
| --- | --- |
| -a | List all the files, even those starting with `.` |
| -C | List files column-wise |
| -i | To show the index number of each file |
| -s | To show the size of each file |
| -1 | To show one file per line |

## Example: 

- To view hidden files in the current directory

`ls -a`

Grasp a variety of ways to list down files in directories!

Introduction to Bash

Navigation Commands

File Manipulation Commands

Permission Commands

Filtering & Searching Commands

System & Process Commands

Variables and Environment

An Overview of Commands

Display Files in a Directory

ls

Definition: