First, create a new C# WPF application. Next, create a folder named Commands. The undo system will contain two essential components: the CommandStateManager and the IUndoCommand interface. The ...

The amazing thing about PowerShell is that you are able to explore around the shell and find all sorts of cool things that it can do. Someone starting out with PowerShell might not be sure what the ...

In our first tutorial on command line wizardry, we covered simple redirection and the basics of sed, awk, and grep. Today, we’re going to introduce the concepts of simple variable substitution and ...

Commands that provide help are essential. Here's a look at some of the help you can get from the Linux system itself. Even after you’ve used Linux for a while, you will still find yourself needing ...

To get started as a Linux (or Unix) user, you need to have a good perspective on how Linux works and a handle on some of the most basic commands. This first post in a “getting started” series examines ...

In part II of this series of articles on doing date math from the command line we want to try to solve a problem we noted in part I: passing the date command a date specification something like "the ...