How to Pretty Print JSON file in Linux Shell Script

1. Install Python: The first step is to install Python on your Linux system. Python is a programming language that can be used to write scripts for automating tasks. 2. Install the JSON Module: Once Python is installed, you can install the JSON module. This module provides functions for encoding and decoding JSON data. 3. … Read more

Check if a directory exists in Linux or Unix shell

To check if a directory exists in a Linux or Unix shell, you can use the “test” command. For example, to check if the directory “mydir” exists, you would use the following command: test -d mydir && echo “Directory exists” || echo “Directory does not exist” [ad_1] As a Linux or Unix user, you may … Read more

How to Force Delete Folders Windows

10 1. Open File Explorer and navigate to the folder you want to delete. 2. Right-click on the folder and select Properties. 3. Select the Security tab and click Advanced. 4. Click the Change link next to the Owner name. 5. Enter your user name and click OK. 6. Check the box next to Replace … Read more

How to Use ‘fsck’ to Repair Linux File System Errors

Introduction The Linux file system is a powerful tool for managing data, but it can sometimes become corrupted or damaged. Fortunately, there is a tool available to help you repair these errors: fsck. Fsck is a command-line utility that can be used to check and repair Linux file system errors. In this guide, we will … Read more

How to Run Linux Commands in Background and Detach in Terminal

Introduction If you are a Linux user, you may have come across a situation where you need to run a command in the background and detach it from the terminal. This can be useful if you want to run a command that takes a long time to complete, or if you want to run a … Read more

Find and Kill Process on Port macOS

To find and kill a process on port on macOS, you can use the command line tool lsof. To use lsof, open the Terminal and type the following command: lsof -i :[port_number] Replace [port_number] with the port number you want to find and kill the process on. This will list all the processes running on … Read more

How to send HTTP POST request using JavaScript

You can use the XMLHttpRequest object to send an HTTP POST request. Example: var xhr = new XMLHttpRequest(); xhr.open(“POST”, “http://example.com/submit.php”); xhr.setRequestHeader(“Content-Type”, “application/x-www-form-urlencoded”); xhr.send(“name=John&age=30”); [ad_1] HTTP (Hypertext Transfer Protocol) is the underlying protocol used by the World Wide Web to transfer data between a client (browser) and a server. HTTP requests are used by browsers to … Read more

How to POST JSON data with cURL

? To POST JSON data with cURL, you can use the following command: curl -X POST -H “Content-Type: application/json” -d ‘{“key”:”value”}’ [ad_1] If you’re working with APIs, you might have to send JSON data to the server at some point. cURL is a powerful tool that allows you to interact with web services from the … Read more

20 Most Commonly Asked MySQL Interview Questions

1. What is MySQL? 2. What are the features of MySQL? 3. What is the difference between MySQL and SQL? 4. What are the different storage engines in MySQL? 5. What is the purpose of the MySQL query cache? 6. What is the difference between CHAR and VARCHAR data types? 7. What is the difference … Read more

How to Update Node.js to Latest Version Ubuntu Linux

1. Check the current version of Node.js First, check the current version of Node.js installed on your system using the following command: node -v 2. Install NVM NVM (Node Version Manager) is a bash script used to manage multiple active Node.js versions. To install NVM, run the following command: curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash 3. … Read more