posts-powershell

For example, you should use this line if you want to launch a *.ps1 PowerShell script externally from outside PowerShell via desktop shortcut or...

In a previous tip, you learned how to determine who the user is logged onto the physical machine. However, this will not discover logged-on terminal...

If you want to check hotfixes, you should compare installed hotfixes on a master image with some other machine. Go ahead and use Compare-Object and...

WMI provides a method to backup event log files as *.evt/*.evtx files. The code below creates backups of all available event logs: Get-WmiObject...

When opening CSV files with Excel from PowerShell, you may receive exceptions if the particular file was opened by Excel already: Invoke-Item...

If customers send in dumped event log files, there is an easy way to open them in PowerShell and analyze content: Get-WinEvent! The -Path parameter...

PowerShell Snapins and Modules can add format files that describe how Powershell should auto-format object types. Use this line to check which...

Use this line to check which .NET assemblies are currently loaded into PowerShell: $host.Runspace.RunspaceConfiguration.Assemblies ReTweet this...

PowerShell needs to run in STA mode to display Windows Presentation Foundation (WPF) windows. ISE runs in STA mode by default whereas the console...

If you want to filter files based on multiple extensions, you should use this filter: filter Where-Extension { param( [String[]] $extension =...

When you run Start-Transcript, PowerShell will document all console input and output in a file. To remove all output and create a file with your...

You will not want a credential dialog to pop up if you need to run scripts unattended that need to authenticate using credentials. Here is an...

You can use this code to find out which user is locally logged on a machine: $computername = 'SomeMachine-or-IP'Get-WmiObject...

Sometimes, cmdlet parameters have additional alias names, but these names aren't well documented. Here is a script that will list all parameter...

If you would like to catch a user’s attention, you can make PowerShell beep like this:...

If you must identify computer hardware, you could do so on the hard drive serial number: Get-WmiObject -Class Win32_DiskDrive | Select-Object...

In Windows Vista and higher, there is a new WMI class called Win32_Volume that you can use to format drives. However, you should be careful when...

You can use PowerShell to automatically prepare your e-mails and send them via Outlook. The code requires that you first launch Outlook as an...

PowerShell can place the mouse cursor anywhere on your screen. Here's the code:...

Compare-Object can help when troubleshooting computers. For example, you should try this to compare the service status on two machines and find out...

To find out whether a given local or domain user/group exists, you can simply use the static method Exists():...

In a previous tip, you learned how to quickly read in text files. The result was a string array. If you want to read the text as one large string...

Let's assume you want to read a large text file. Let's create one: Get-Process | Export-CliXML $home\data.xml(Dir $home\data.xml |...

PowerShell is all about typing. But if you'd like to get back the old-fashioned typewriter sound, here is a freeware tool that can bring it...

If you would like to programmatically control page file settings, you can use WMI but must enable all privileges using -EnableAllPrivileges. The...

Let's assume you want to eliminate duplicate words in a text. Here is how you can do this: 'this text text contains duplicate words words...

Operator replace is extremely powerful when you use back references. For example, to make sure in a text that there is a space after each comma, you...

If you need to replace text with some other text and keep a reference to the original text, you can use the backreferenceback reference placeholder...

If you need quotes to appear inside a quoted string, you should use quotes: $text = "Hello ""World"""$text =...

Sometimes it only takes a little tweaking to make a native command run well inside PowerShell. For example, this line runs in cmd.exe but fails in...