A variable is a character string to which we assign a value. A variable is nothing more than a pointer to the actual data. The shell enables you to create, assign, and delete variables. The reason you ...

I've been hacking around with some Linux shell scripts for a project that are derived from existing, known good scripts. I'm using Ubuntu on WSL. The original scripts are nested, and a common pattern ...

Bash scripting is a powerful tool for automating tasks on Linux and Unix-like systems. While it's well-known for managing file and process operations, arithmetic operations, such as division, play a ...

Environment variables are key-value pairs that store information about the system environment. In Linux scripting, several built-in environment variables provide useful information and configuration ...

PowerShell scripters have a few choices in the editor they can use to write code. Options range from the PowerShell Integrated Script Environment, Visual Studio Code, Visual Studio, Notepad++ and more ...

There I was, trying to come up with a topic for this column, when I did what I usually do when stumped: I sent a question out to my Twitter followers. This time, I got a great answer, from John ...

Hi there,<br><br>I have seeing some shell script examples that use (use, not declare!) variables like this:<br><br><pre class="ip-ubbcode-code-pre">${VAR_1}</pre> <br ...

Variables are just about the most ubiquitous element inside any PowerShell script. Variables can easily be created and referenced inside your script. But sometimes you just need to test to see if they ...