DEV Community: Anand Jha

Learn Basics of Markdown

Anand Jha — Sun, 28 Jun 2020 09:34:46 +0000

What's Markdown and Why so popular ?

Markdown is one of the most popular mark-up language. It's lightweight markup language that you can use to add formatting elements to plain text documents. Markdown is popular because you can use it for everything like- to create Websites, documents, e-mail messages, presentation, books, technical documents.

Where to use ?

We can use Markdown everywhere it's fast and easy to take notes, create contents for website, from email messages to grocery list we can format using Markdown.

Let's learn Markdown

These are some elements all Markdown application support these elements.

Basic Markdown Syntax

Heading: We use # for headings
for H1 we use - #
for H2 we use - ##
and for H3 we use - ###

To format in bold we use - ** **

To format text in Italic we use - * *

Line Break : We use br for line break

For Ordered List we use: For ordered lists we use the numbering 1., 1., 1.. Wait — no consecutive numbers? No! Markdown takes care of the correct numbering automatically which is very useful if you want to add an additional element within your list at some later point. See the example below.

For Unordered List we use -: With Markdown it is very easy to create bulleted (unordered) and numbered (ordered) lists. For bulleted lists we use *, + or - for each bullet point.

For check-boxes we use: If you want to check a box just add x in the square brackets.

For Quotes: By using > Text a quote will be inserted. Blockquotes can be nested (i.e., a blockquote-in-a-blockquote) by adding additional levels of >:

For Link we use : In [] we write title and in () we write the link url

Reference-style: Instead of providing the link in parenthesis you give a reference name in square brackets and the link later on in the text or in a reference

To add a clickable email address in your text just put angle brackets around the email address: <>.

For Image we use : ![]()

Example of an inline-style image:

All you need to start with Command Line

Anand Jha — Tue, 05 May 2020 08:59:49 +0000

Command line is an essential tool for software development.

The command line is a tool for interacting with a computer using only text (also known as a text interface) rather than other methods like clicking and scrolling.

✨ Let's start to learn (can use it as a reference guide)🏃‍♂️🏃‍♂️🏃‍♂️...

To create a new file = touch file_name

You can create an empty file by typing touch file_name and executing it.

To display the content of a file = cat file_name

You can also display the content of a file with the cat command.

To create a directory = mkdir directory_name

You can create a new directory using a command as well. A directory is commonly used interchangeably with the term folder. To create a directory, use the mkdir command.

To move to other directories = cd directory_name

You can use the cd command to move to other directories. By entering cd directory_name, you can move to the specified directory.

To check the current directory = pwd
On the command line, it is important to know the directory you are currently working in. There is a command called pwd to check that.

To display the content of the directory = ls

When moving between directories, it would be convenient if we could see the list of files and directories in the current directory. To do this, you can use the ls command.

To move to the parent directory = cd..

If you want to move to the parent directory, you can use a special symbol .., like cd ...

To move to the home directory = cd

If you execute cd without specifying a directory, you can move to what is called a home directory.

The home directory is represented by ~

The Home directory refers to the base directory for the user.Since it is important, moving to the home directory is made to be easy.
To moving a file = mv file_to_move destination_name

By typing mv file_to_move destination_directory, you can move a file to the specified directory.

To moving a directory = mv directory_to_move destination_directory

With the mv command, you can also move directories, not just files. By entering mv directory_to_move destination_directory, you can move all the files and directories under that directory.

To Renaming a file = mv old_file_name new_file_name

The mv command, which we used to move files and directories earlier, can also be used to rename a file. You can rename a file by typing mv old_file_name new_file_name.

To copying a file = cp file_to_copy new_file_name

The cp command is used to copy a file content.

To copy a directory = cp -r directory_to_copy new_directory_name

With the cp command, you can also copy a directory by adding the -r (Recursive copy) option, like cp -r directory_to_copy new_directory_name.

To Remove a file = rm file_to_remove

The rm command is used to remove a file.

To remove a directory = rm -r directory_to_remove

You can also remove a directory by adding the -r option to the rm command, like rm -r directory_to_remove.

To clear the screen = clear
We use clear command to clear the screen

Competitive Programming

Anand Jha — Tue, 28 Apr 2020 17:51:46 +0000

What is Competitive Programming

Competitive Programming is an art. Most of the developers don't do this because they think it's really tough ?. But it isn't tough it's like a game when you start playing with problems you start loving it. CP is like a game but it also tests your patience level.

How to start Competitive Programming ?

Most of the beginners don't know how to start CP even i myself don't know this when i started my journey in CP world. When i started CP most of the time i was unable to solve even basic problems and this is the time when we say that we can't do this. But the only way to be good in this is keep doing competitive programming.

Some rules to start competitive programming

learn one programming language completely.
learn data-structures
Strong your basics and for this
Daily write code
Read and apply algorithms.

Golden rule of CP

The only rule is just learn before you write code. The problem with us is this world change us and we don't want to wait and that's why most of the developers jump in competitive programming before knowing the basics and that's why they'll not able to solve problems and they become frustrated. So first complete your basics and write code daily.

How we can do this regularly ?

This is the common problem with us that we start something and after 3 or 4 days we become bore and we leave that thing.

Solution of this problem is

do commitment with yourself
write your goal somewhere( like on paper etc.)

and the best way of doing this is make a PR on github and name it whatever you want eg. 100 days of CODE and push your code daily.