Category: Shell Programming

When it comes to working in a Unix or Linux environment, one of the most essential tools is the bash shell. As a software developer, I rely heavily on bash for numerous tasks, and one thing I’ve learned over time is the importance of not having a “man” on bash. Let me explain why. The…

As a long-time Linux user and system administrator, I’ve encountered numerous situations where I needed to work on sensitive files or execute commands that should not be stored in the command history for security reasons. One such command that comes in handy in these situations is the “don’t save” command in Bash. Let’s dive deeper…

Have you ever wondered what “bash” stands for in the context of computer programming? I’ll admit, I was always curious about the origins of this popular term. So, let’s dive into the world of bash and uncover the meaning behind this mysterious acronym. The Birth of Bash Firstly, let’s set the stage by explaining that…

Hey everyone, I’m excited to share with you all about the latest release of Bash, Bash 2021. As a developer who heavily relies on Bash for scripting and automation, I was eagerly looking forward to the new features and improvements that this release has to offer. Let’s dive in and explore what’s new in Bash…

When it comes to working with strings and characters in the bash scripting language, one common issue that many developers encounter is dealing with case-insensitive comparisons. The default behavior of bash is to perform case-sensitive comparisons, which means that ‘a’ and ‘A’ are considered different characters. This can lead to unexpected results when comparing strings…

As a long-time user of the bash shell, I have often wondered about the concept of reaping processes and whether the bash shell itself can get reaped. Let’s dive into this technical topic and explore what happens behind the scenes. Understanding Process Reaping Before we discuss whether the bash shell can get reaped, it’s important…

As a technical expert, I’ve come across the topic of bash vulnerabilities, and it’s crucial to understand the differences between various versions of the Bash shell. Let’s dive into the details and explore how Bash vulnerabilities differ from one another. Bash Vulnerabilities: Understanding the Differences Bash, or the Bourne Again Shell, is a widely used…

Welcome to my article on the newly released bash 2023! As a software enthusiast and developer, I am always excited about the latest updates and improvements in programming tools and languages. Let’s dive deep into the features and enhancements that bash 2023 brings to the table. Enhanced Performance bash 2023 boasts improved performance, thanks to…

As a software developer, I have experienced firsthand the incredible impact that bash scripts can have on production processes. Bash scripting, which is a shell script written for the GNU Bash environment, has been an invaluable tool in streamlining and automating various tasks in production environments. Let’s dive deeper into how bash scripts have helped…

As a programming enthusiast, I’ve always been intrigued by the origins of different programming languages and tools. One tool that has always fascinated me is Bash. So, let’s dive into the history of how Bash came to be. The Birth of Bash In 1989, Brian Fox began coding what would become the Bourne-Again Shell, or…

Hey there, tech enthusiasts! Today, I want to share with you a neat trick that I’ve found incredibly useful when working with Bash. Have you ever needed to print a string with a newline character? It’s a common scenario, and there’s a straightforward solution in Bash using the echo command. The Basics of Bash echo…

As a technical expert, I’m excited to delve into the intricacies of the Bash vulnerability and how it differs from the BAS. Understanding these differences is crucial for anyone working in the field of cybersecurity and system administration. The Bash Vulnerability The Bash vulnerability, also known as Shellshock, is a security bug that affects Unix-based…

Welcome to my blog post about “Have Bash, Now What?” Getting Started with Bash So, you’ve just started using Bash, one of the most powerful and popular command-line interfaces available. As a beginner, it can be a bit overwhelming to figure out where to start, but don’t worry – I’ve been there. Let’s dive into…

As a frequent user of the terminal, I often find myself navigating through previous commands using the history feature in Bash. However, one thing that has always bothered me is the lack of time stamps on the commands I’ve executed. It makes it challenging to track when a specific command was run, especially when I…

As a technical expert, I often find myself writing bash scripts to automate various tasks. One common requirement is to introduce a delay or sleep for a few minutes within the bash script. Let’s explore the practical steps to achieve this and the potential use cases for such a delay. Understanding the ‘sleep’ Command The…

Having a Bash, or using the Bash shell, is an essential skill for anyone working in the tech industry. It’s a powerful tool that allows you to interact with your computer’s operating system and automate tasks. As a tech enthusiast and professional, I’ve found that mastering Bash has been a game-changer for my productivity and…

Have you ever found yourself in a situation where you need to automate a key press in a Bash script at regular intervals? Perhaps you’re working on a project that requires a simulated keyboard input every minute. In this article, I’ll guide you through the process of achieving this using Bash scripting. Let’s dive in!…

Running Bash is a fundamental skill for anyone working in a command-line environment. As a software developer, I rely on Bash for various tasks such as file manipulation, running scripts, and managing system configurations. In this article, I’ll share insights into how I run Bash, along with personal anecdotes and tips to make the most…

Have you ever wanted to automate the process of sending an email notification when a Bash script has finished running? I recently encountered this need, and I found a solution that I’d love to share with you. Sending an email when a Bash script completes its execution can be especially useful for monitoring long-running or…

As a developer, I often find myself needing to automate tasks on the command line. One common scenario is opening a website directly from the bash shell. In this article, I’ll guide you through the process of accomplishing this and share some personal insights along the way. Understanding the Command Opening a website from the…

I recently discovered a handy trick for working with the tr command in Bash that I’d like to share with you all. It’s a simple yet effective method for breaking long commands into multiple lines, making them easier to read and manage. Let’s dive into the details of how to use tr across multiple lines…

As a software developer, I often find myself working in the command line, particularly with bash scripts. One of the common challenges I encounter is checking for the existence of a directory. There are times when I have received an error message stating “more than one binary operator expected” and it took me some time…

I’ve always been curious about the significance of the #!/bin/bash at the beginning of shell scripts. It’s a peculiar thing to see at the top of a file, and it often makes me wonder if it’s truly necessary for bin/bash to be in the first line. Let’s dive into this topic and explore the ins…

As a technical writer and enthusiast of all things programming, I often find myself exploring the depths of various programming languages and their capabilities. One question that I’ve encountered frequently is whether Bash, the popular Unix shell and command language, supports the use of a “goto” statement. In this article, we’ll delve into the world…

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When working with strings in Bash, it’s important to understand how the “eq” operator functions. The “eq” operator is used to compare strings for equality in Bash scripting. It’s crucial to grasp the nuances of string comparison in order to avoid unexpected results in your scripts. Understanding the “eq” Operator The “eq” operator is specifically…

As a technical writer who has spent countless hours working with bash scripting, I’ve often wondered about the behavior of the return statement in bash. In traditional programming languages like Python or JavaScript, the return statement is used to end the execution of a function and return a value to the calling code. However, in…

As someone who spends a lot of time working with the command line, I’ve often come across the question, “Does bash restart bash?” It’s a fascinating topic because understanding how the bash shell works can significantly impact our efficiency and effectiveness as developers. Let’s dive deep into this question and explore the inner workings of…

Hey there, fellow tech enthusiasts! Today, I want to dive into the world of scripting and talk about a common operator in Bash scripting that we often use to compare values. That’s right, I’m talking about the “does not equal” operator, or !=, in Bash. This operator is incredibly useful when we want to check…

As a web developer, I often encounter situations where I need to compare strings or patterns in shell scripting, particularly in the Bash environment. One specific case that comes up frequently is the usage of the does not match operator. In this article, I will delve into the details of the does not match operator…