powershelltips

Active Directory and other services sometimes use a custom GUID format. To convert a GUID to that format, all blocks of the GUID need to be...

If you must make sure that a function within your script is inaccessible from outside calls, you can use this trick. Save this code as a script...

Select-String is an extremely useful cmdlet for parsing log files. You can use it to dump all lines in a text file that contain a certain keyword....

There are two ways for replacing text, and both have their advantages and pitfalls: Each string has a Replace() method which works very...

PowerShell can read and also change any part of a scheduled task. Just make sure you have appropriate permissions and run PowerShell elevated....

PowerShell 3.0 does not ship with help files. Instead, they need to be downloaded separately using Update-Help. Unfortunately, PowerShell 3.0 help...

There is a COM interface that you can use to select and dump any scheduled task definition. Just make sure you are running PowerShell with full...

Here's a simple trick to reverse a text string: $text = 'Hello World' $text = $Text.ToCharArray() [Array]::Reverse($text) -join $text...

Let's assume your script may or may not need to do a privileged operation, for example write a value to a HKEY_LOCAL_MACHINE branch, depending...

There are many ways in PowerShell to create new objects. One of the more advanced approaches uses a hash table to determine object properties and...

If you need to know the number of files in a folder, there are different approaches with different advantages and disadvantages. The first one is...

Let's assume you have a CSV file with information that you need to frequently look up. For example, the CSV file may contain server names and...

Write-EventLog lets you write custom entries to event logs, and New-EventLog can add new event logs and event sources. Which raises the question:...

If you want to write plain text information to a file, don't use Out-File. Instead, use Set-Content. It is much faster: $tempfile1 =...

In a previous tip we explained how you can convert a string array into one big string. That's a prerequisite for quickly searching and replacing...

When you use Get-Content to read the content of a text file, you always get back a string array. So each line of your text file is kept separately....

When you open a MsgBox dialog from PowerShell, the dialog window may sometimes not be visible and instead appears behind the PowerShell or ISE...

If you know the IP address and subnet mask, you can take these and calculate the broadcast address. Here's a function does it for you. Simply...

Sometimes you may want to convert an IP address to its decimal value, for example, because you want to use binary operators to set bits. Here are...

To execute code in 32-bit from within a 64-bit environment (or vice versa), you can create appropriate aliases: In a 32-bit PowerShell, you create:...

Whenever a PowerShell script asks for credentials, PowerShell pops up a dialog box. You can view this by running this command: Get-Credential...

In a previous tip we showed how you can display an IPv4 address as a binary. Here's an even faster (and more cryptic) way: $ipV4 =...

If you run a large Active Directory, you should use specific Active Directory cmdlets or management functions. However, if you just want to know the...

WMI represents all kinds of physical and logical entities on your machine. It also has classes that represent user accounts which include both local...