Author: Rahul

Assuming that you work in a bakery with a few team members, everyone has their own tasks, like making bread, decorating cakes, or preparing pastries. In the world of coding, particularly when using Git, a version control system, this is similar to each person working on their own part of the project in separate branches. Just as each baker has their own station but needs to coordinate with others, developers use branches to work independently yet stay aligned with the team’s goals. This tutorial will help you to clone all remote branches in a Git repository, using simple and a…

Redis is an in-memory data structure store, widely used as a database, cache, and message broker. It is particularly useful for managing PHP sessions due to its high performance, low latency, and data persistence capabilities. In this article, we will guide you through the entire process of installing, configuring, and using Redis as a session store for PHP applications. Installing Redis on Your System First, you need to install Redis on your Linux distribution. The installation process varies depending on the package manager used by your distribution. Here are some examples: For Debian-based systems (e.g., Ubuntu), use the apt package…

JQ is a versatile command-line JSON processor for Linux that allows developers to parse, filter, and transform JSON data quickly and efficiently. Its powerful features make it an indispensable tool for anyone working with JSON files on Linux systems. In this article, we’ll cover the top 10 essential JQ commands that every Linux developer should know to streamline their JSON processing tasks. Example JSON File Content For this tutorial, you can use the following example JSON data in a file named input.json. This JSON data represents an array of people with their respective names, ages, countries, and addresses:

Save…

JQ is a powerful and flexible command-line JSON processor for Linux, designed to parse, filter, and transform JSON data. Its lightweight nature and speed make it an essential tool for developers working with JSON files. In this article, we will explore how to use the JQ command-line tool to pretty print JSON files in Linux, improving readability and enhancing the debugging process. 1. Installing JQ on Your System Before you can use JQ to pretty print JSON files, you need to install it on your Linux distribution. The installation process varies depending on the package manager used by your distribution.…

DNS (Domain Name System) is a critical component of the internet that translates human-readable domain names into IP addresses that computers can understand. When DNS issues arise, it can be challenging to diagnose the problem. This is where the Dig command-line tool comes in handy. Dig is a powerful DNS troubleshooting tool that allows users to query DNS servers and retrieve information about domain names, IP addresses, and other DNS records. In this article, we will explore 15 examples of using Dig for DNS troubleshooting. Section 1: Basic Dig Commands In this section, we will explore some basic Dig commands…

Git is an essential tool for developers, enabling efficient code versioning, management, and collaboration. One of the key aspects of working with Git is sharing local branches with remote repositories, allowing multiple team members to contribute to the same project. In this article, we will provide a comprehensive guide to pushing new local branches to remote Git repositories, making collaboration more effective and streamlined. Step 1: Create a New Local Branch Before you can push a new local branch to a remote repository, you must first create the branch. To do this, use the git checkout command with the -b…

Git is a powerful version control system that helps developers manage code efficiently and collaborate with their teams. Two essential Git commands for working with remote repositories are ‘git pull’ and ‘git fetch’. Although they seem similar, understanding their differences is crucial for streamlining your Git workflow and maintaining a clean project history. In this article, we will explore the ‘git pull’ and ‘git fetch’ commands in-depth, explaining their unique features and when to use each one. ‘git fetch’: Syncing Remote Changes The ‘git fetch’ command is used to download changes from a remote repository to your local repository without…

Bash is a popular shell used in most Linux distributions. It provides various I/O redirection techniques that allow users to control how input and output are processed in their commands and scripts. One of the most commonly used I/O redirection techniques is 2>&1, which redirects standard error (stderr) to standard output (stdout). In this article, we will provide a beginner’s guide to understanding 2>&1 in Bash. What is 2>&1? 2>&1 is an I/O redirection operator used in Bash that redirects the stderr stream to the same destination as the stdout stream. In other words, it merges the error output with…

A shell script is a powerful tool for automating tasks on Unix-based systems. One common requirement when writing shell scripts is checking if a particular program or command exists on the system. This article will guide you through different methods to perform this check, allowing you to make your script more robust and reliable. Table of Contents: Using the command -v Utilizing the type command Relying on the which command Employing the hash command Tips for best practices 1. Using the command -v The `command -v` is a POSIX-compliant method for checking the existence of a program. It’s a built-in…

The shebang, also known as a “hashbang” or “sharpbang”, is an essential part of Bash scripts and other executable scripts in Unix-based systems. This seemingly simple line of code tells the operating system how to interpret and execute the script. In this article, we will explore the history and purpose of shebangs, common Bash shebangs and their meanings, how shebangs affect script portability, differences between shebangs in various Linux distributions, and tips for ensuring your Bash script runs as expected with the appropriate shebang. History and Purpose of Shebangs The shebang was introduced in Unix systems in the late 1970s…