PowerShell Filter on multiple parameters

Question

I was wondering if is possible to specify multiple search filters as once. For example, I have this line of code that finds all files that have the "&" symbol.

get-childitem ./ -Recurse -Filter "*&*" | 
    ? { $_.PSIsContainer } | 
    Select-Object -Property FullName

I'd like to extend this so that I can search one time and find files with other symbols like %,$,@, etc. I want to find files that have any of these symbols, not neccesarly files that have all of them so I assume there needs to be an OR somewhere. I tried the below code but it didn't seem to work for me:

get-childitem ./ -Recurse -Filter "*&*" -Filter "%" | 
    ? { $_.PSIsContainer } | 
    Select-Object -Property FullName

Keith Hill · Accepted Answer · 2014-02-27 16:17:44Z

2

You can use the -match operator and a regex for this:

Get-ChildItem -Recurse | 
    Where { !$_.PSIsContainer -and ($_.name -match '&|%|\$|@')} | 
    Select-Object -Property FullName

If you are on PowerShell v3 or higher you can simplify this a bit:

Get-ChildItem -Recurse -File | 
    Where Name -match '&|%|\$|@' | 
    Select-Object -Property FullName

edited Feb 27, 2014 at 16:17

answered Feb 27, 2014 at 16:10

Keith Hill

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2 Comments

Ansgar Wiechers Over a year ago

I'd use a character group ([&%$@]) rather than an alternation.

Keith Hill Over a year ago

Yes, that would be better. Thanks.

mjolinor · Accepted Answer · 2014-02-27 16:37:22Z

2

If you have V3 or better, you can leverage the "globbing" wildcard feature:

get-childitem './*[&%$@]*' -Recurse | where {$_.PSIsContainer}

If you've got V4, you can dispense with the $_.PSIsContainer filter and use the -Directory switch:

get-childitem './*[&%$@]*' -Recurse -Directory

answered Feb 27, 2014 at 16:37

mjolinor

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