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To get a rough understanding how much memory a script takes, or how much memory PowerShell puts aside when you store results in a variable, here is...

When you use variables inside a script block, the variables are evaluated when you run the script block. To lock variable content, you can create a...

Mutually exclusive parameters in PowerShell functions use the "ParameterSetName" attribute to assign parameters to different parameter...

Sometimes, PowerShell functions have parameters that should be mutually exclusive: the user should only be able to use either one, not both. To...

If you'd like to create your own color-coded PowerShell scripts, for example formatting them in HTML, here is a sample that gets you started....

If you know beforehand how many results you expect from a pipeline, you can use Select-Object to stop the upstream cmdlets. This can save a lot of...

If a function returns more than one value, PowerShell wraps them in an array. However, if you pass the results to another function inside a...

One feedback we got on a previous tip directed us to "Carbon", a free PowerShell module crammed with useful PowerShell functions. One is...

PowerShell can easily create CSV files using Export-Csv, and if Microsoft Excel is installed on your system, PowerShell can then have Excel convert...

Provided you have Administrator privileges, you can use a simple WMI class to check whether someone is accessing your resources via the network:...

Are you tired of Windows unexpectedly rebooting, just because some newly installed updates required a reboot? Like most things, you can control the...

You may know that each string object has a method called Trim() that trims away whitespace both from the beginning and end of a string: $text =...

Here is a quick script illustrating how a PowerShell script can send back a numeric status code to the caller: $exitcode = 123 $p = Start-Process...

Occasionally, there are misunderstandings how "exit" works. Take this example: function abc { 'Start' exit 100 'Done' }...

Do you know off-hand what "break", "continue", "return", and "exit" do? These are powerful language...

Here is a quick and easy way to find NTFS permissions that are potentially dangerous. The script tests all folders in $pathsToCheck and reports any...

Would you like to know where a public IP address is located? Provided you have Internet access, you can query one of the public information...

Here is a quick way to get all IP addresses assigned to your computer: #requires -Version 1 $ipaddress = [System.Net.DNS]::GetHostByName($null)...

To check credentials (username plus password) against your current domain, you can use this approach: #requires -Version 1 $username =...

Whenever you use UNC paths in PowerShell, your script may break. Since a UNC path has no drive letter, PowerShell looks at the current directory...

With splatting, you can call cmdlets and programmatically control the parameters you submit. To do this, add the parameters and values to a hash...

RSS feeds can be read by using an XML object, however XML objects do not support proxies. Here is an example that uses Invoke-WebRequest to retrieve...

Get-ItemProperty can easily read registry values, but you do not get back any information about the registry value type. Get-ItemProperty -Path...

PowerShell can query websites that deliver XML content, and here is an example on how to query a movie database. Simply adjust the name of the TV...