DEV Community: Muhammad Maaz Shakeel

10 Linux Commands For Beginners

Muhammad Maaz Shakeel — Mon, 28 Jun 2021 17:17:34 +0000

Note: If there is a command ls then you need to only type ls but not to type Ls. Linux and Unix Commands are case-sensitive..

1. pwd

pwd is a command that shows you the path where you are currently is.

2. ls

ls is a command that shows you the list of directories or files in the current directory.

3. cd

cd command lets you change the directory.

Usage cd [Directory name]

4. cat

cat command lets you see the content of the file.

Usage cat [File name]

5. mkdir

mkdir command lets make a new directory in the current directory.
Usage mkdir [Directory name (You wanna give it to]

6. rmdir

rmdir command lets you delete a directory.

Usage rmdir [Directory name]

7. touch

touch command lets you create a new file.

Usage touch [File name (You wanna give it to]

8. uname

The uname command, short for Unix Name, will print detailed information about your Linux system like the machine name, operating system, kernel, and so on.

9. history

history command shows you the history of your commands that you typed so far.

10. man

man command lets you see the manual of any command.

Usage man [command]

App Secret-Messages With React-Native

Muhammad Maaz Shakeel — Mon, 28 Jun 2021 10:42:41 +0000

App Functionality

This is an app built in React Native.

Here is how UI looks like:

Typing a message with the key

Encrypting

Copied that encrypted message

Decrypting the message with that key when we were encrypting the message

Users can type a message with the key and encrypt that. Now, The encryption of that text user can also decrypt that text by inputting that key.

Video of My App

Here is the source code: https://github.com/maazshakeel/Secret-Messages-App-With-React-Native

How I Learnt Logic Building in Programming! - 5 Tips To Build & Improve Programming Logic

Muhammad Maaz Shakeel — Sat, 26 Jun 2021 17:01:08 +0000

Tip #1: Divide & Conquer

Always divide the problem into different parts.

For Example

This is a C code that just input for a number one and a number two and simply add them.

   #include <stdio.h>

   int main(void)
   {
       int num1;
       printf("Number One: ");
       scanf("%i", &num1);
       int num2;
       printf("Number One: ");
       scanf("%i", &num2);
       printf("The Addition ofjavascrip those numbers is: %i", num1 + num2);
   }

This program just adding two numbers inputted from the user. So, we can just divide this code.

So, How are we going to divide this code, Well we can create a function called add that just returns the value of the addition of those numbers that inputted from the user?
Let's Divide the code

   #include <stdio.h>

   int add(int number1, int number2);   

   int main(void)
   {
       int num1;
       printf("Number One: ");
       scanf("%i", &num1);
       int num2;
       printf("Number One: ");
       scanf("%i", &num2);
       int addition = add(num1, num2);
       printf("The addition of those numbers is: %i", addition);
   }
   int add(int number1, int number2)
   {
       return number1 + number2;
   }

So, We divided the code. This was an example of a simple program. Maybe you have a complex program, so you can divide them into functions or maybe you are making an app in react native.

React-Native lets you break the code into its own component. And you can create a file for that component and import that component.

So, You can break the code into its own components in your own application. This will be cleaner and more readable code.

Tip #2: Write a well-commented code

Write comments on your code, that explaining your code that what that block of code is actually doing.

So, Let's take the example of the code and write comments on that code we used in the last tip.

For Example

   #include <stdio.h>

   int add(int number1, int number2);   

   int main(void)
   {
       // Getting input from the user
       int num1;
       printf("Number One: ");
       scanf("%i", &num1);r
       int num2;
       printf("Number One: ");
       scanf("%i", &num2);
       // Adding the numbers
       int addition = add(num1, num2);
       // Printing the Output
       printf("The addition of those numbers is: %i", addition);
   }
   // This function add simply returns the sum of two numbers
   int add(int number1, int number2)
   {
       return number1 + number2;
   }

So, write comments that explain your block of code.

Tip #3. Learn Data structures and algorithms

Programming is all about data structure and algorithms. Data structures are the fundamentals of all programming languages. It means that if you want to have a good command of any programming language, then you should start with the data structures of that programming language.

If you get a better command over the data structure of programming languages, then you can quickly improve your programming logic for that language. Now you know the best way of how to develop logical thinking in programming.

4. Learn about Programming paradigms

It would help if you also tried to learn the programming paradigms. There are many types of programming paradigms. One of the most popular programming paradigms is object-oriented programming. The programming paradigms also work as the blueprint.

With the help of this blueprint, you follow a predefined path to create the projects. It would help if you created plenty of projects using the same programming paradigms to have proper command over them. It will help you to improve your programming logic.

5. Start exploring code from experts

There are hundreds of ways to write a program to solve a particular problem. In programming, we have many ways to solve many problems. You may use different logic to solve the problem. And the other programming may use different logic to solve the same problem. That programmer might use the most optimal and straightforward way to solve the problem.

Therefore you should look at other people’s code; it will help you to advance as a programmer. Github is one of the most popular programming platforms where you can see a lot of great projects and lots of programmers to solve the most complex problems with a short length of code.

So, I hope this will going to be helpful for you. Thanks for reading.

I have a secret for you to master any concept.

Muhammad Maaz Shakeel — Fri, 25 Jun 2021 11:13:04 +0000

Start teaching that concept.

What do I mean By that, Well It means Start teaching others.
For example, Teach that concept to your younger brother. But, When you are teaching, You are going to hesitate, and not know that concept really clearly concept or how to define that concept. So, Then you are going to research for that. Like that you'll be master that concept.
Definitely, Not all people have their younger brothers.
So, I'll be going to show you 3 possible ways to do that:

Start a YouTube channel. ✔️
Start blogging on:
- https://hashnode.com ✔️
- https://medium.com ✔️

And there is a couple of websites you can blog on them. So, These websites were just an idea.

Teach yourself in Mirror. ✔️

So, That's it.

I hope this will be helpful for you.

Top 9 Must Have Chrome Extensions.

Muhammad Maaz Shakeel — Fri, 25 Jun 2021 07:56:22 +0000

Todo List : Todo List
Screencastify : ScreenCastify
MemoRise : MemoRise
Dark Reader : Dark Reader
Save to Pocket : Save to Pocket
OneNote web clipper : OneNote web clipper
Bitly : Bitly
Vimium : Vimium
Google Keep : Google Keep

I hope you like these chrome extensions.

Here is the story of my Self-Taught Developer coding journey how I get into coding.

Muhammad Maaz Shakeel — Fri, 25 Jun 2021 07:41:12 +0000

My Coding Journey

I started learning Computer Science in 2020 When I was 12. I took the course CS50, shared by my father. In that course, they teach us the art of programming and how to think. Here is the introduction video of that course.

While learning that course, I heard about Web Development, hacking and other things related to technology, These things were the distractions, but then I started researching Web Development for a couple of weeks and other things.

I learned Web Development and other things while learning that course, then continued that course. So, After completing that course, Right Now I'm learning Mobile App Development With React Native.
http://cs50.harvard.edu/%20game%20developemnt
Here are the resources that might helpful for you:

Learn Computer Science, CS50 Introduction to computer science The course that I took.
Learn CS50 Mobile App Development With React Native, Also The course I took.
Learn CS50 Game Development

Connect with me:

Twitter: https://twitter.com/ProCoder88

LinkedIn: https://linkedin.com/in/ProCoder88

Github: https://github.com/maazshakeel

📌My goals for this year

Muhammad Maaz Shakeel — Fri, 25 Jun 2021 06:15:07 +0000

🚀 Get 2K friends on @Twitter
👨‍💻 Learn React and Django
📱 Learn #CS50 Mobile App Development
👩‍💻 Learn #CS50 Game Development
🧐 Learn #CS50 Artificial Intelligence

You can make an HTML link open in a new tab.

Muhammad Maaz Shakeel — Tue, 22 Jun 2021 21:32:30 +0000

You can make an HTML link open in a new tab by adding the target=”_blank” attribute. You should insert this after the link address.