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

# cp
## Definition: 
This command is one of the most frequently used commands. It is used to copy files and directories. By default, `cp` copies files but not directories. Always be careful while choosing name for new files because the content might be lost if you use a file name that already exists. If you're placing the copied version in the same directory then it must have a different name than the original name. 
## Syntax: 
```
cp [option] [file_name] new_file_name
```
## Options: 

| **Option** | **Meaning** |
| --- | --- |
| -r or -R | Means *Recursive*. It is used to copy directories including all its content |
| -i | This option is only used to warn the user about overwrite issues |
| -b | Used to make backup copies |
| -f | Means *Force*. This option is used to force open the destination files |
| -u | Means *Update*. As the name suggests, it only updates the file if any changes are made in the file |
| -x | This option is to indicate `cp` to stay on the same file system |
| -s | By using this option you can only make references rather than deep copying everything |


## Example: 

1. Copy three files in a different directory simultaneously with the same names

 `cp file1 file2 file3 my_directory`

You will learn how to copy files via command line in this lesson.

Introduction to Bash

Navigation Commands

File Manipulation Commands

Permission Commands

Filtering & Searching Commands

System & Process Commands

Variables and Environment

An Overview of Commands

Copying Files in Bash

cp

Definition: