Powershell

Ever wanted to open the current PowerShell folder in an Explorer view? Try this: ii . This will work as long as the current folder is a valid file...

If you need to filter running processes by owner, for example to terminate the ones owned by some user, you should use WMI and the GetOwner()...

If your script needs to know whether your computer has a battery, you can ask WMI. Here is a small function: function Has-Battery {@(Get-WmiObject...

Have you ever wondered how PowerShell would store a jpeg picture into your Active Directory user account? With the help of some low-level .NET...

Adding parameters to your functions is fairly easy. You can add a param() block and specify the parameters. But what if you wanted to assign values...

Did you know that you can compile any .NET source code on the fly and use this to create your own types? Here is an example illustrating how to...

Have you ever wanted to find out the effective uptime of your PC (or some servers)? The information can be found inside the event log. Here is an...

PowerShell is great for parsing log files. Here is a function that extracts all installed Windows updates from an internal log file and returns the...

Regular expressions are extremely powerful - and complex. Fortunately, there are plenty of sources for good regular expressions that describe all...

While you can use Get-WMIObject to query for WMI objects and then select the ones you are really after, you can also cast a WMI object path to a WMI...

Group-Object creates groups based on object properties. For example, you could group processes by company or folder listings by extension: Dir...

Often, some text will need to be replaced in a text file. That's easy with Get-Content and Set-Content - or not? Get-Content c:somefile.txt |...

Sort-Object can sort on multiple properties at the same time. Have a look: Get-Service | Sort-Object Status, Name This will list stopped services...

Get-Member is a great cmdlet to discover object members, but it will not show everything: "Hello" | Get-Member You should add -force to...

Sometimes you may want to tag results returned by a cmdlet with some extra information, such as a reference to some PC name or a timestamp. You can...

Whenever you pipe objects through Select-Object, you actually get a copy of the original object. All properties are now readable and writeable, so...

To create relative dates like "10 days ago," there are two paths. Administrators often add or remove time spans created by New-Timespan:...

Whenever you use WMI (Get-WMIObject) to retrieve information, it's a snap to turn a local solution into a remotable solution. You can just add...

Ever wondered what type of RAM your PC uses and if there is a bank available to add more? Ask WMI! This example also converts the cryptic type codes...

Objects store information in various properties. There are two approaches if you would like to get to the content of a given property. One is...

You should use this approach if you need to change the creation time of a folder or file after you have created it: Get-Childitem c:\testfolder |...

If you would like to make error messages more readable, you can change their background color from black to white:...

How do you exclude objects based on empty properties? For example, WMI returns all kinds of "network adapters:" Get-WMIObject...

You can also use this little helper function if you run scripts every day and want to make sure they don't do anything on weekends: function...