Search for a command to run...
Hi, Nice seeing you here I am a Software Engineer with a background in Computer Science having in-depth knowledge of Backend Development, Frontend Development and DevOps. I Love building and deploying systems with my knowledge and create a product that is easily accessible to all. Really appreciate your time.
No comments yet. Be the first to comment.
STEP 0 : Creating an empty Nodejs repository Go to your desired directory and run the below command to setup an empty directory with package.json npm init -y STEP 1: Creating a server To create an express server we have to install express STEP 1.1: ...
What is a Middleware ? In Backend development middleware is the code snippet that resides before the server and the main purpose of a middleware is to filter out the request that does not perform a specific criteria which is written on the middleware...
Authentication is the process of verifying the identity of a user or entity attempting to access a system or resource. It is a fundamental aspect of security in web development and is essential for ensuring that only authorized individuals or entitie...
STEP 0: Creating an empty Nodejs repository Go to your desired directory and run the below command to setup an empty directory with package.json npm init -y STEP 1: Creating a server To create an express server we have to install express STEP 1.1: I...
Given an array of N integers return an element that occurs more than N/2 times in the given array. The Brute Force The most Navie and brute force approach is - Loop through each of the elements of the array For each of the elements, find its count ...
The ls command in Linux is used to list the contents of a directory. It stands for list and is one of the most commonly used commands in the Linux terminal.
Some of the basic options that can be used with ls include:
-l : This option displays the contents of a directory in a long format, showing details such as permissions, owner, size, and modification date for each file or directory.
-a : This option displays all files and directories, including hidden files.
* : This option lists the contents of the directory with its subdirectories.
The cd command in Linux is used to change the current working directory. It stands for change directory and is used to navigate the file system.
Some examples of using the cd command include:
cd / : This changes the current working directory to the root directory.
cd ~/ : This changes the current working directory to the home directory of the current user.
cd ../ : This changes the current working directory to the parent directory.
cd <directory> : This changes the current working directory to the specified directory, relative to the current working directory.
The pwd command in Linux stands for print working directory and is used to display the current working directory.
When you run the pwd command, the full path of the current working directory is displayed on the terminal. This is useful for determining your current location in the file system and for referencing other files and directories relative to the current working directory.
The cp command in Linux is used to copy files and directories from one location to another.
The most common options used with cp are:
-v : This option displays the progress of the copy operation.
-R : This option is used to copy directories recursively, including all files and subdirectories within them.
The rm command in Linux is used to remove files and directories.
The most common options used with rm are:
-r : This option is used to remove directories and their contents recursively.
-v : This option displays the name of each file as it is removed.
The mv command in Linux is used to move files and directories from one location to another.
The touch command in Linux is used to create new empty files.
The mkdir command in Linux is used to create new directories.
The echo command in Linux is used to display text or the contents of variables on the screen.
The most common options used with echo is:
-e : This option enables the interpretation of backslash escapes.
The cat command in Linux is used to concatenate and display the contents of files on the screen.
The most common options used with cat are:
-n : This option displays the line numbers for each line of the file.
-b : This option displays the line numbers only for non-empty lines of the file.
-e : This option displays a $ character at the end of each line of the file.
