To append a CSV file with new data, first of all make sure the type of data you append is the same type of data already in a file (or else column names will not match).

If you need to get two random numbers from a given numeric range, and you want to make sure they cannot be the same, simply tell Get-Random cmdlet to pick two numbers, and assign them to two different variables at the same time

The Get-Process cmdlet returns a lot of information about running tasks but it does not return the process owners or the session a process is logged on to.

Let's assume your script wants to share status information via a balloon message in the system tray area. Here is a sample code.

To extract an icon from a file, use .NET Framework methods. Here is a sample code that extracts all icons from all exe files in your Windows folder (or one of its subfolders).

As of PowerShell v3, Get-ChildItem cmdlet is smart enough to filter files and folders for you.

In PowerShell v3, Restart-Computer cmdlet now has a number of useful new parameters. For example, you can restart a remote machine and wait for the reboot process to finish.

The new PowerShell ISE script editor in PowerShell v3 lets you customize a lot of colors, so if a particular color does not show well on a projector, for example, simply change it.

Here's a quick and fast way of generating relative dates in any format.

Provided system restore points are enabled on your machine and your script has admin privileges, PowerShell can easily create restore points and restore the system if anything went bad.