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

# rm
## Definition: 
`rm` is used to delete files and directories. By default, it is only set to remove files and not directories for safety. It basically unlinks the file name with the data stored in so that it cannot be accessed anymore. Before deleting any file, you must have permissions to delete it. You can delete multiple files at once. This command is almost similar to `rmdir`. The only difference is that `rmdir` is used to delete empty directories only. You can also delete symbolic links to a file, in this way, only link is removed but the file remains unaffected. 
## Syntax: 
```
rm [options] [file_name(s)]
```

## Options: 
To indicate `rm` the end of options, `--` double dashes are used. This is very useful when a directory's name starts with `-`

| **Option** | **Meaning** |
| --- | --- |
| -f | Means *force*. This option tells `rm` to force delete all the specified files without showing any message |
| -i | Means *interactive*. This option prompts the user for confirmation before deleting any file |
| -r or -R | Means *recursive*. It is used to recursively delete diectories by first emptying them and then removing them one by one |


## Example: 

1. Delete multiple files at once

`rm file_1 file_2 file_3`

Here, you will learn how to delete files in a shell.

Introduction to Bash

Navigation Commands

File Manipulation Commands

Permission Commands

Filtering & Searching Commands

System & Process Commands

Variables and Environment

An Overview of Commands

Remove a File in Bash

rm

Definition: