PowerShell PowerTip: searching and installing modules on the command line

PowerShell 5+ ships with the module PowerShellGet, which lets us search and install modules from cmdlets. The default nuget repository is the PowerShell Gallery, but you could add others yourself (including custom ones for internal modules). There are a lot of reasons this could help you: You need a custom module installed on a machine…

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Regular Expressions (REGEX): Grouping & [RegEx]

Welcome back to the RegEx crash course. Last time we talked about the basic symbols we plan to use as our foundation. This week, we will be learning a new way to leverage our patterns for data extraction and how to rip our extracted data into pieces we care about. [RegEx] The [Regex] data type has…

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PowerShell PowerTip: History of commands with PSReadline

One of the really cool things PSReadline provides (module shipping on v5+) isn’t as immediately obvious as the syntax highlighting. It offers a persistent history that is stored from session to session. This means if you run commands in a window, close it, and open a new one later you can still hit the up…

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Regular Expressions (REGEX): Basic symbols

Welcome back to the RegEx guide. Last post we talked a little bit about the basics of RegEx and its uses. I mentioned the most important thing is to understand the symbols. Today we’ll ease in with some of the basics to get us going, but later we will expand on these and see some…

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PowerShell PowerTip: What is the point of Out-Variable?

A lot of times people see others using the common parameter -OutVariable instead of the best practice $var = <value>. This leads to a lot of folks wondering why OutVariable  exists. The real use for OutVariable is to save your data off, while still letting it get sent along the output stream. What this means is…

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PowerShell PowerTip: What you should know about streams

PowerShell has a concept called Streams, which are the different places data can go (output, error, verbose, etc). You usually don’t have to worry too much about these streams if you’re just writing simple scripts, but it helps a ton to know: All streams are separate even if they all appear to be coming to…

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Regular Expressions (REGEX): Introduction

Hi all, this week I’ll be talking about Regular Expressions. I’ve got a few posts planned to get you set up and going with some basic Regex. Regex is used for extracting and validating data. Essentially, you can think of Regex as windows wild cards on steroids. Anytime we need to match data with a little…

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PowerShell PowerTip: Checking your PowerShell version

If there is one question I could say I get the most in PowerShell, it is: How do I check my version? Its not a hard thing, but its not an obvious thing. We can actually check our version with a build in variable called PSVersionTable Hope that helps, tune in more often to get…

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PowerShell For Programmers: Here Strings, There Strings, Everywhere Some String Strings

There won’t be much code in today’s post, but this can be a useful feature to know about. In addition to the expandable and literal strings we talked about, we can also use something called a Here String. Here strings allow us to have quote characters inside of our string that match the quote characters…

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PowerShell PowerTip: Grabbing the location your script lives in

One super common thing in PowerShell is to design a script to consume particular files for data. Often times you are building the script right in the folder for your files. However, it can be annoying to give long, literal file paths to a file. Also, if you give that script to someone else, they…

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