Extract Version Number from String

Question

Using the following PowerShell command,

Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* |
  Select-Object DisplayName, DisplayVersion |
  Select-String 'Application Name'

I get an output like this:

@{DisplayName=Application Name; DisplayVersion=52.4.1521}

If this was on Unix, I could probably figure out a sed or awk command to extract the version number, but on Windows I don't even know where to begin. How do I get that version number out as the value of a variable?

Ansgar Wiechers · Accepted Answer · 2015-12-10 14:23:25Z

2

Get-ChildItem produces a list of objects, so you should work with the properties of those objects. Filter the list via Where-Object for the object with the display name you're looking for, then expand the DisplayVersion property:

$regpath = 'HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall'
$version = Get-ItemProperty "$regpath\*" |
           Where-Object { $_.DisplayName -eq 'Application Name' } |
           Select-Object -Expand DisplayVersion

You can also have the filter do partial matches with wildcards

... | Where-Object { $_.DisplayName -like '*partial name*' } | ...

or regular expressions

... | Where-Object { $_.DisplayName -match 'expression' } | ...

edited Dec 10, 2015 at 14:23

answered Dec 10, 2015 at 14:11

Ansgar Wiechers

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1 Comment

WhiteHotLoveTiger Over a year ago

Wow, this is great. Thank you.

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