Blog | Alkane

Use Test-Path with PowerShell

When we want to check for the existence of files, folders and registry entries we can use Test-Path with PowerShell to return ‘true’ if it exists and ‘false’ if it doesn’t exist. Using Test-Path with Files and Folders Here we...

September 13, 2022

PowerShell

Use PowerShell Comparison Operators to Compare Strings and Numbers

There are many instances where we need to use PowerShell comparison operators to compare strings and numbers. Here we go through some quick examples. Comparing Strings with PowerShell Here we use ‘eq’ to see if one string equals another. This...

September 9, 2022

PowerShell

Get Help with PowerShell Cmdlets, Parameters, Methods and Properties

Sometimes we’re struggling to write a script need to get help with PowerShell cmdlets, parameters, methods and properties. Here we explain how we can use get-help to assist us. Firstly, it’s useful to know which Cmdlets and functions are available...

September 9, 2022

PowerShell

Use PowerShell to Read and Write Environment Variables

Here we explain how to use PowerShell to read and write environment variables, which exist in the user, process and machine contexts. We can read and write environment variables in a variety of ways, but the easiest ways to read...

September 9, 2022

PowerShell

Use PowerShell to Read from a Text File

Here we explain how to use PowerShell to read from a text file, and iterate through it line by line. Consider the following text file called c:\alkane.txt: line 1 line 2 line 3 line 4 line 5 We can simply...

September 9, 2022

PowerShell

Using PowerShell to Replace Strings

There are a couple of ways of using PowerShell to replace strings. We can use either the Replace() method or the -replace operator. PowerShell String Replacement using the Replace() Method This isn’t my favourite approach to replacing string using PowerShell,...

September 9, 2022

PowerShell

Compare Version Numbers with PowerShell

I recently needed to compare version numbers with PowerShell, so I could deduce which software was superseded by a later version. But it turned out to be a little more complicated than anticipated! In software versioning, I see 14.03.0.0 as...

August 26, 2022

Miscellaneous

Microsoft Edge Prompt This Site Is Trying To Open

Have you ever been using Microsoft Edge and tried to launch a Teams URL, or maybe a Citrix Receiver URL, and received the Microsoft Edge prompt This Site Is Trying To Open [protocol]? In older versions of Edge you might...

July 14, 2022

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