Author: Rahul

Looping through a range of numbers is a common task in scripting and programming. In this article, we will explore various methods to loop through a range of numbers using Bash, a powerful scripting language for Unix-based systems. Mastering these techniques will help you automate tasks, process data, and perform complex operations with ease and efficiency. Table of Contents Introduction to Bash Using the for Loop with a Range of Numbers Looping with the seq Command Looping with the for ((…)) Arithmetic Expression Looping with the while Loop Real-World Applications Conclusion 1. Introduction to Bash Bash (short for Bourne Again…

The .htaccess file is a powerful configuration file used by web servers to control the behavior of websites. It can be used to perform a wide range of functions, including URL redirection, password protection, caching, and more. While .htaccess files are widely used, many website owners and developers are unaware of the full range of capabilities they offer. In this article, we will explore 21 .htaccess tricks that everyone should know. From creating custom error pages to blocking bad bots and optimizing website performance, these tips will help you get the most out of your .htaccess file. Whether you’re a…

Strace is a powerful tool in Linux that can be used to trace system calls, signals, and other related information. It is a valuable tool for system administrators, developers, and programmers to debug issues and optimize system performance. With Strace, you can gain deep insights into how your system is working and identify potential issues. In this article, we will provide 10 Strace command examples for effective system analysis in Linux. Tracing a Command The simplest use case for Strace is to trace a command. To do this, simply prefix the command with “strace”. For example: strace ls This command…

Strace is a powerful command-line tool that can be used for tracing system calls and signals in Linux. It is an essential tool for system administrators, developers, and programmers to debug issues and optimize system performance. In this article, we will provide a complete guide to mastering the Strace command in Linux. What is Strace? Strace is a system call tracer that captures and displays the system calls made by a program or process. It can also display signals and other related information. Strace is a powerful tool for debugging issues in applications or for investigating system performance issues. Strace…

Linux is a popular open-source operating system used by developers, system administrators, and everyday computer users around the world. One of the most powerful features of Linux is its ability to manage processes and services. Processes are individual instances of a program that run on the system, while services are background processes that provide various functions to the system. In this comprehensive guide, we’ll take a closer look at how to work with processes and services in Linux. Processes in Linux A process in Linux is an instance of a program that is running on the system. Each process has…

JavaScript is a versatile programming language that supports a wide range of programming paradigms. One of the most powerful features of JavaScript is closures, which allow developers to create powerful and flexible code. In this article, we will explore what closures are and how they work, along with some examples. What is a Closure in JavaScript? A closure is an inner function that has access to the outer function’s variables, parameters, and arguments. The inner function can access these variables even after the outer function has returned. A closure allows you to encapsulate and protect data within a function, preventing…

JavaScript is a versatile and powerful programming language that has been used extensively in the development of web applications. As a developer, it’s essential to have a solid understanding of the language’s capabilities and advanced techniques to create robust, efficient, and scalable web applications. Here are 15 advanced JavaScript techniques that every developer should know. 1. Closures Closure is a powerful technique in JavaScript that allows you to create functions with persistent state. Essentially, a closure is a function that “remembers” the environment in which it was created. This can be useful for creating private variables, as well as for…

Async/await is a feature of JavaScript that allows developers to write asynchronous code in a more synchronous-looking way. With async/await, developers can write code that waits for an asynchronous operation to complete, without blocking the main thread of execution. In this article, we’ll explore how to use async/await in JavaScript with some examples. Syntax of Async/Await The syntax of async/await is fairly simple. To define an asynchronous function, you add the async keyword before the function keyword, like this:

Inside the async function, you can use the await keyword to wait for a Promise to resolve, like this:

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Zsh is a powerful shell that provides a wide range of features and functionalities to enhance the user’s experience. One of the key features of Zsh is its support for special variables, which allow users to perform various tasks easily and efficiently. In this article, we will explore some of the most useful special variables in Zsh and discuss how they can be used to improve your shell scripts. $0 – Get the running script name The $0 variable in Zsh refers to the name of the current script or shell being executed. This variable is particularly useful when you…

Sed, short for “stream editor”, is a powerful text-processing tool that is commonly used in Linux and Unix systems. It can perform a wide range of operations on text files, including searching, replacing, inserting, and deleting lines. One common task that users often need to perform with Sed is uncommenting lines in a text file. In this article, we’ll provide a guide to mastering Sed and using it to uncomment lines in text files. Before we dive into the specifics of using Sed to uncomment lines, let’s first define what we mean by “uncommenting.” In programming, a comment is a…