If you are using Publish-Module to publish your modules to a PowerShell repository, and you keep getting exceptions about unsupported commands, it...
Powershell
Splitting Large Files in Smaller Parts (Part 3)
In previous tips we illustrated how you can use PowerShell to split files into smaller file chunks, and how to join the chunks to recreate the...
Splitting Large Files in Smaller Parts (Part 2)
In our previous tip we explained how you can split large files into smaller chunks. Today, we complete this with a function that takes these file...
Splitting Large Files in Smaller Parts (Part 1)
PowerShell can split large files in multiple smaller parts, for example to transfer them as email attachments. Today, we focus on splitting files....
Sending Mails via Outlook
To send mails via PowerShell, you can use Send-MailMessage. However, this requires that you have access to an SMTP server, and mails sent this way...
Mind Jogging Generator
The human mind can read sentences even if the characters are scrambled as long as the first and last letter of each word stays intact. Here is a...
Speeding Up the PowerShell Pipeline
PowerShell scripts can grow very slow when you (a) need to process a lot of items and (b) you are using the PowerShell pipeline. Let’s today...
Where-Object: Just A Pipeline-Aware If-Clause
Where-Object is one of the most frequently used PowerShell commands, yet it looks unfamiliar to new PowerShell users. Those who are familiar with...
Using Custom Prompts for Mandatory Parameters
When you define mandatory parameters in PowerShell, the user gets prompted for the value if it is missing. The prompt uses the parameter name only...
Checking Cmdlet Availability and Script Compatibility (Part 3)
Not all PowerShell cmdlets ship with PowerShell. Many are part of 3rd party modules which in turn ship when you install certain software, or use...
Checking Cmdlet Availability and Script Compatibility (Part 2)
Not all PowerShell cmdlets ship with PowerShell. Many are part of 3rd party modules which in turn ship when you install certain software, or use...
Checking Cmdlet Availability and Script Compatibility (Part 1)
Not all PowerShell cmdlets ship with PowerShell. Many cmdlets are part of 3rd party modules which in turn ship when you install certain software, or...
Colorful ASCII-Art from Images
In the previous tip we showed you how you can take any image or photo and turn it into a black&white ASCII art. Today, we have a revised...
Testing Raw Data with Checksums – A Real-World Example
With PowerShell entering the IoT world, sometimes it is necessary to deal with binary sensor data and ancient checksum models to verify data...
Inverting Bits
Occasionally it is necessary to invert the bits for a number. Most often, this is part of custom algorithms or checksum calculations. It raises the...
Calculating Most and Least Significant Byte
Numbers are stored internally as bytes. An Int32 value, for example, uses four bytes. Sometimes it is required to split up the number into its byte...
Accepting Parameters without Quotes
In the previous tip, we introduced a function that generates nicely centered headers and accepted a single string. Here is the function and its...
Creating Aligned Headers
Reporting and writing log files is a common task in PowerShell. Here is a simple function to create nicely centered headers. Adjust $width to the...
Computer Name, DNS Name, and IP Address
Here is a simple one-liner that returns your computers’ current IP address and its full DNS name: PS>...
Managing Windows License Key (Part 4)
Slmgr.vbs is an ancient VBScript used to automate Windows license management. In the previous tip we started bypassing slmgr.vbs by reading the WMI...
Managing Windows License Key (Part 3)
Most Windows license and activation tasks can be automated using an ancient VBScript called slmgr.vbs. It does not make much sense to use this tool...
Managing Windows License Key (Part 2)
Most automated license key management tasks are done via a command called slmgr. This command is actually an ancient VBScript. To read all of your...
Managing Windows License Key
Let’s start this mini-series with a one-liner that extracts your Windows license key: PS> $key = (Get-WmiObject -Class...
Create ASCII Art
It’s amazing how versatile PowerShell is: with just a couple of lines of code, you can turn any photo and image into a piece of ASCII art....