Variables often look like $var, but they also look like $1, $*, $? and $$. Let's take a look at what all these $ values can tell you. A lot of important values are ...

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 ...

I've added some environment variables to /etc/profile and /etc/bashrc, but when I run commands with sudo, they're not there—sudo env does not list them. Is there some other profile I should be editing ...