Vista - -filter multiple file extensions

is it possible to use the -filter | -exclude | -include
for multiple extensions, something like

get-childitem d:\test -filter *.vob,*.mp3,*.avi

i tried delimiting with ";" or "." or "," none worked


--
$hay
http://scriptolog.blogspot.com

Hi Shay,

You can't do it using the -filter parameter since you are supplying an
array as value to a parameter which takes a string.

You can do it using -include but since you appear to have had problems
with that you are probably hitting one of the "features" of
get-childitem that, in my view, needs to be improved/corrected as soon
as possible.

Assume you are in the directory with the files. Then

PS C:\PowerShellScripts\MP3> get-childitem -include *.mp3,*.vob

returns nothing.

But if you add the *,

PS C:\PowerShellScripts\MP3> get-childitem * -include *.mp3,*.vob


Directory:
Microsoft.PowerShell.Core\FileSystem::C:\PowerShellScripts\MP3


Mode LastWriteTime Length Name
---- ------------- ------ ----
-a--- 16/01/2007 08:57 14 Empty1.mp3
-a--- 16/01/2007 08:57 14 Empty1.vob
-a--- 16/01/2007 08:57 14 Empty2.mp3
-a--- 16/01/2007 08:57 14 Empty2.vob
-a--- 16/01/2007 08:57 14 Empty3.mp3
-a--- 16/01/2007 08:57 14 Empty3.vob

it does what you wanted.

The same anomaly of semantics occurs if you use the full paths.

PS C:\PowerShellScripts\MP3> get-childitem C:\PowerShellScripts\MP3
-include *.mp3,*.vob
PS C:\PowerShellScripts\MP3> get-childitem C:\PowerShellScripts\MP3\*
-include *.mp3,*.vob


Directory:
Microsoft.PowerShell.Core\FileSystem::C:\PowerShellScripts\MP3


Mode LastWriteTime Length Name
---- ------------- ------ ----
-a--- 16/01/2007 08:57 14 Empty1.mp3
-a--- 16/01/2007 08:57 14 Empty1.vob
-a--- 16/01/2007 08:57 14 Empty2.mp3
-a--- 16/01/2007 08:57 14 Empty2.vob
-a--- 16/01/2007 08:57 14 Empty3.mp3
-a--- 16/01/2007 08:57 14 Empty3.vob


The presence or absence of the * is crucial to semantics.

The semantics of get-childitem have been flagged as a very important
bug for a long time. Unfortunately, it was resolved as "postponed" for
PowerShell 1.0. See
https://connect.microsoft.com/feedba...9321&SiteID=99
for an illustrative descriptionr of another of the problems of
semantics with get-childitem.

Since get-childitem can often be in an earlier pipeline step for
move-item or remove-item it seems to me that the semantics of
get-childitem need to be rock solid. At the moment that's not how I
would describe them, unfortunately.

I hope that helps.

Andrew Watt MVP
Author Professional Windows PowerShell (Wrox)


On Tue, 16 Jan 2007 09:39:59 +0200, "$hay" <no@addre.ss> wrote:

>is it possible to use the -filter | -exclude | -include
>for multiple extensions, something like
>
>get-childitem d:\test -filter *.vob,*.mp3,*.avi
>
>i tried delimiting with ";" or "." or "," none worked
>
>
>--
>$hay
>http://scriptolog.blogspot.com

great
just voted for it on connect

---
$hay
http://scriptolog.blogspot.com



"Andrew Watt [MVP]" <SVGDeveloper@aol.com> wrote in message
news:as5pq29o2eahft5rp6ail02l3pubt38q4f@4ax.com...
> Hi Shay,
>
> You can't do it using the -filter parameter since you are supplying an
> array as value to a parameter which takes a string.
>
> You can do it using -include but since you appear to have had problems
> with that you are probably hitting one of the "features" of
> get-childitem that, in my view, needs to be improved/corrected as soon
> as possible.
>
> Assume you are in the directory with the files. Then
>
> PS C:\PowerShellScripts\MP3> get-childitem -include *.mp3,*.vob
>
> returns nothing.
>
> But if you add the *,
>
> PS C:\PowerShellScripts\MP3> get-childitem * -include *.mp3,*.vob
>
>
> Directory:
> Microsoft.PowerShell.Core\FileSystem::C:\PowerShellScripts\MP3
>
>
> Mode LastWriteTime Length Name
> ---- ------------- ------ ----
> -a--- 16/01/2007 08:57 14 Empty1.mp3
> -a--- 16/01/2007 08:57 14 Empty1.vob
> -a--- 16/01/2007 08:57 14 Empty2.mp3
> -a--- 16/01/2007 08:57 14 Empty2.vob
> -a--- 16/01/2007 08:57 14 Empty3.mp3
> -a--- 16/01/2007 08:57 14 Empty3.vob
>
> it does what you wanted.
>
> The same anomaly of semantics occurs if you use the full paths.
>
> PS C:\PowerShellScripts\MP3> get-childitem C:\PowerShellScripts\MP3
> -include *.mp3,*.vob
> PS C:\PowerShellScripts\MP3> get-childitem C:\PowerShellScripts\MP3\*
> -include *.mp3,*.vob
>
>
> Directory:
> Microsoft.PowerShell.Core\FileSystem::C:\PowerShellScripts\MP3
>
>
> Mode LastWriteTime Length Name
> ---- ------------- ------ ----
> -a--- 16/01/2007 08:57 14 Empty1.mp3
> -a--- 16/01/2007 08:57 14 Empty1.vob
> -a--- 16/01/2007 08:57 14 Empty2.mp3
> -a--- 16/01/2007 08:57 14 Empty2.vob
> -a--- 16/01/2007 08:57 14 Empty3.mp3
> -a--- 16/01/2007 08:57 14 Empty3.vob
>
>
> The presence or absence of the * is crucial to semantics.
>
> The semantics of get-childitem have been flagged as a very important
> bug for a long time. Unfortunately, it was resolved as "postponed" for
> PowerShell 1.0. See
> https://connect.microsoft.com/feedba...9321&SiteID=99
> for an illustrative descriptionr of another of the problems of
> semantics with get-childitem.
>
> Since get-childitem can often be in an earlier pipeline step for
> move-item or remove-item it seems to me that the semantics of
> get-childitem need to be rock solid. At the moment that's not how I
> would describe them, unfortunately.
>
> I hope that helps.
>
> Andrew Watt MVP
> Author Professional Windows PowerShell (Wrox)
>
>
> On Tue, 16 Jan 2007 09:39:59 +0200, "$hay" <no@addre.ss> wrote:
>
>>is it possible to use the -filter | -exclude | -include
>>for multiple extensions, something like
>>
>>get-childitem d:\test -filter *.vob,*.mp3,*.avi
>>
>>i tried delimiting with ";" or "." or "," none worked
>>
>>
>>--
>>$hay
>>http://scriptolog.blogspot.com