posts-powershell

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All Versions To extract certain parts from raw strings, you can often use a combination of text splitting and text substring commands. For example,...

All PowerShell versions If you need to stress test systems, or need large dummy files for other purposes, here is some code that can create even...

All Versions To make sure output text is not excessively long, you can use logic like this to shorten text that is longer than a given maximum...

ActiveDirectory Module We already illustrated previously how you can use Get/Set-Acl to read and write permissions to files and folders. The truth...

All versions Here is yet another approach that you can use to detect errors emitted by console applications: $ErrorActionPreference = 'Continue'...

All PowerShell versions With Get-Acl, you can output the security information from files and folders as plain text in SDDL format (Security...

All PowerShell Versions Here is some simple code that reads the NTFS permissions from one folder and applies the exact same settings to another....

All Versions When you run native console EXE commands such as robocopy.exe, ipconfig.exe, or similar commands, you can handle errors raised by these...

All Versions WMI classes are inherited from each other, and that’s something you can take advantage of. Take this line: PS> Get-WmiObject...

All PowerShell versions To find out who owns a particular process and how many instances are running, try this simple piece of code: $ProcessName =...

PowerShell 2.0 and later In your Windows folder, you find all kinds of system log files. One is DISM.log which contains information about the...

ActiveDirectory Module To set AD attributes for a user account, PowerShell uses hash tables. That’s a versatile approach that lets you specify...

Module ActiveDirectory To create a large number of new Active Directory users, you can import the user data from a CSV file, for example export an...

Module ActiveDirectory To remove one or many users from an Active Directory group, try this approach: $user = @() $user += Get-ADUser -Filter { Name...

All PowerShell versions If you use PowerShell at home or in an environment without central group policy management, here are some additional steps...

PowerShell 2.0 and later If you use PowerShell at home or in an unmanaged environment, here are some additional steps you should consider to make...

PowerShell 2.0 and later If you use PowerShell at home or in an unmanaged environment, here are some steps you should consider to make PowerShell...

All PowerShell versions Whenever you assign NULL values to array elements, they will count as array elements, but will not be output (after all,...

All PowerShell versions This line will take a list of numbers and randomize their order: Get-Random -InputObject 1, 2, 3, 5, 8, 13 -Count...

Windows 8.1 / Server 2012 R2 Disk management has been greatly simplified with the many new client and server cmdlets that ship with Windows 8.1 and...

All PowerShell Versions Do you own Windows 8.1 Basic, Pro, or Enterprise? Finding out the Windows version is easy. Finding out the exact subtype is...

All Versions To construct path names from parent folders and files, you may have been using Join-Path. This cmdlet takes care of the correct number...

Windows 8.1 Pro/Enterprise or Server 2012 R2 Both Windows 8.1 and Server 2012 R2 come with a vast number of additional cmdlets, some of which can be...

All PowerShell Versions Error numbers that are returned by Windows API calls often appear as very large negative numbers. To give meaning to these...

All Versions To convert decimal color values to a hexadecimal representation, like the one used in HTML, try this line: PS>...

PowerShell 3.0 and later Provided you have downloaded PowerShell help via Update-Help, you can create yourself an excellent help topic viewer with...

PowerShell 5.0 Preview As you might know, PowerShell 5.0 Preview is available and comes with vast debugging improvements. One is to be able to debug...

All PowerShell Consoles (not PowerShell ISE) Before you try this, you may want to click the icon in the upper left corner of the PowerShell title...