Author: Rahul

The latest macOS systems comes with Z Shell (Zsh) as default shell, but who still preferred to use bash can still use it by switching the default shell. This tutorial will help you for switching between Zsh and Bash on macOS systems. It covers an overview of both shells, the steps for setting them up, methods for transitioning between them, and tips for customizing your shell environment. We also address common questions related to the usage of both Zsh and Bash on macOS. Whether you are a developer, system administrator, or power user, this guide will provide valuable insights into…

A temporary failure in name resolution is a common issue that Linux users may encounter when their system cannot resolve a hostname to an IP address. This problem can occur due to various reasons, such as network connectivity issues, DNS configuration problems, or issues with the local hosts file. In this article, we will discuss several steps you can take to troubleshoot and resolve this issue on your Linux system. 1. Check your internet connection Before diving into the technical aspects of resolving the issue, it is crucial to ensure that your system is connected to the internet and that…

Bash, the widely popular Unix shell, offers a variety of ways to perform arithmetic operations and manipulate expressions. One of these methods is using double parentheses ((…)). In this article, we will dive deep into the world of double parentheses and explore how they can be used for arithmetic and nested expressions. Table of Contents Introduction to Double Parentheses in Bash Arithmetic Operations with Double Parentheses Comparison and Logical Operators Nested Expressions Using Double Parentheses for Flow Control Conclusion 1. Introduction to Double Parentheses in Bash Double parentheses ((…)) in Bash are used for arithmetic operations and evaluation of expressions.…

Understanding how to assess network connectivity is crucial for troubleshooting and monitoring purposes. The ping command is a popular tool used to test the connectivity between two devices on a network. In this article, we will explore how to use conditional bash scripting to ping IP addresses and check the status of network connections using if-else statements. 1. Basics of the ping command The ping command sends Internet Control Message Protocol (ICMP) echo request packets to a specified IP address or hostname, waiting for an ICMP echo reply. It measures the round-trip time between the source device and the target…

As a Linux, Windows or macOS user, one of the most essential skills you can develop is the ability to troubleshoot network issues. The ping command is a versatile and powerful tool that can help you diagnose and resolve a variety of connectivity problems. This comprehensive guide will help you understand the fundamentals of the ping command, including its various options, use cases, and best practices for network troubleshooting. 1. What is the Ping Command? The ping command is a network diagnostic tool that allows you to test the reachability of a host on an Internet Protocol (IP) network. By…

Bash, the widely-used Unix shell, is a powerful and flexible scripting language that allows users to automate tasks, manipulate files, and control the flow of their scripts. One of the essential features of Bash is the use of operators, which enable users to evaluate expressions, make decisions, and perform arithmetic operations. Among the numerous operators that Bash offers, four of them – [[, [, (, and (( – are frequently used and serve distinct purposes. In this article, we will delve into the key differences between these four Bash operators, examining their specific applications, syntax, and unique features. By comprehending…

Welcome to “Mastering Arithmetic Operators in Bash: A Comprehensive Guide,” a resource dedicated to providing an in-depth understanding of arithmetic operators in the powerful and versatile Bash shell. Bash, an acronym for Bourne-Again SHell, is a widely-used Unix shell that enables users to execute commands and scripts across various systems. To create effective and efficient shell scripts, a strong grasp of Bash’s arithmetic operators is essential. In this guide, we will explore the various arithmetic operators available in Bash, including addition (+), subtraction (-), multiplication (*), division (/), and modulo (%). These operators are crucial for performing arithmetic operations and…

Bash, short for Bourne Again SHell, is a Unix shell and command-line interpreter. It is widely used for scripting and automation tasks, as well as for interactive use in terminal sessions. One of the essential features of Bash is its ability to compare and manipulate numerical values. In this comprehensive guide, we will explore the ‘-le’ operator, its usage, syntax, and examples to help you understand its role in Bash scripts. 1. What is the ‘-le’ Operator? The ‘-le’ operator in Bash is a comparison operator that is used to check if one value is less than or equal to…

Bash, short for “Bourne-Again SHell,” is a Unix shell and a command-line interface for interacting with an operating system. As an integral part of the Linux and macOS operating systems, Bash scripting is a valuable skill for developers, system administrators, and even casual users. In this article, we will explore the ‘-ne’ operator in Bash, its usage, and various examples to help you better understand and implement it in your scripts. Before diving into the ‘-ne’ operator, it’s essential to understand what operators are in the context of Bash scripting. Operators are symbols that perform specific actions on operands. Operands…

Bash, or the Bourne Again SHell, is a popular Unix shell that provides users with the ability to write scripts and execute commands. The Bash scripting language allows for the creation of advanced scripts that can automate tasks, manipulate text, and perform logical operations. One important aspect of Bash scripting is the use of operators for comparison and arithmetic operations. In this comprehensive guide, we will explore the ‘-eq’ operator in Bash and its various applications. This operator is commonly used to compare numeric values and can be a vital tool for conditional statements and decision-making in Bash scripts. Understanding…