where-object

Hi everyone,

I am trying to pull a list of all the files in a directory that end with
".car"

my where-object syntax fails ont he following:

where-object {$_name -match "*.CAR*"}

Where is th problem? Can you help?

Thank you

Corinne

-match is used to match against a regular expression - see

help about_comparison_operators
and
help about_regular_expression

The easiest way to acheive what you want is to use

where{$_.name -like "*.CAR*"}

or to use the filter option on get-childitem

get-childitem -filter *.car*

--
Richard Siddaway
Please note that all scripts are supplied "as is" and with no warranty
Blog: http://richardsiddaway.spaces.live.com/
PowerShell User Group: http://www.get-psuguk.org.uk


"Corinne" wrote:

> Hi everyone,
>
> I am trying to pull a list of all the files in a directory that end with
> ".car"
>
> my where-object syntax fails ont he following:
>
> where-object {$_name -match "*.CAR*"}
>
> Where is th problem? Can you help?
>
> Thank you
>
> Corinne
>
>
>

Hi Corinne

I guesst you forget the "." after $_

Try this :

Get-ChildItem | Where-Object -FilterScript { $_.name -like '*.car'}

Regards

Bruno


"Corinne" <clofts@shepherd-neame.co.uk> a écrit dans le message de news:
OHqxzCrSHHA.1036@TK2MSFTNGP03.phx.gbl...
> Hi everyone,
>
> I am trying to pull a list of all the files in a directory that end with
> ".car"
>
> my where-object syntax fails ont he following:
>
> where-object {$_name -match "*.CAR*"}
>
> Where is th problem? Can you help?
>
> Thank you
>
> Corinne
>

Thank you Richard!


"RichS" <RichS@discussions.microsoft.com> wrote in message
news:2B6D4704-A252-4F2E-A24F-C2ED34DF090B@microsoft.com...
> -match is used to match against a regular expression - see
>
> help about_comparison_operators
> and
> help about_regular_expression
>
> The easiest way to acheive what you want is to use
>
> where{$_.name -like "*.CAR*"}
>
> or to use the filter option on get-childitem
>
> get-childitem -filter *.car*
>
> --
> Richard Siddaway
> Please note that all scripts are supplied "as is" and with no warranty
> Blog: http://richardsiddaway.spaces.live.com/
> PowerShell User Group: http://www.get-psuguk.org.uk
>
>
> "Corinne" wrote:
>
>> Hi everyone,
>>
>> I am trying to pull a list of all the files in a directory that end with
>> ".car"
>>
>> my where-object syntax fails ont he following:
>>
>> where-object {$_name -match "*.CAR*"}
>>
>> Where is th problem? Can you help?
>>
>> Thank you
>>
>> Corinne
>>
>>
>>

Merci Bruno!


"Bruno Guerpillon" <toto@toto.fr> wrote in message
news:45c9d115$0$23926$426a34cc@news.free.fr...
> Hi Corinne
>
> I guesst you forget the "." after $_
>
> Try this :
>
> Get-ChildItem | Where-Object -FilterScript { $_.name -like '*.car'}
>
> Regards
>
> Bruno
>
>
> "Corinne" <clofts@shepherd-neame.co.uk> a écrit dans le message de news:
> OHqxzCrSHHA.1036@TK2MSFTNGP03.phx.gbl...
>> Hi everyone,
>>
>> I am trying to pull a list of all the files in a directory that end with
>> ".car"
>>
>> my where-object syntax fails ont he following:
>>
>> where-object {$_name -match "*.CAR*"}
>>
>> Where is th problem? Can you help?
>>
>> Thank you
>>
>> Corinne
>>
>
>

"Corinne" <clofts@shepherd-neame.co.uk> wrote in message
news:OHqxzCrSHHA.1036@TK2MSFTNGP03.phx.gbl...
> Hi everyone,
>
> I am trying to pull a list of all the files in a directory that end with
> ".car"
>
> my where-object syntax fails ont he following:
>
> where-object {$_name -match "*.CAR*"}
>
> Where is th problem? Can you help?

And if you really want to test to see if the filename "ends" with .car use
"\.car$" as your regular expression otherwise just using ".car*" would match
the following also:

fcar
f.car.txt

--
Keith

You know what they say. When you have a problem you need regex for...now
you have two problems...

--
William Stacey [C# MVP]
PCR concurrency library: www.codeplex.com/pcr
PSH Scripts Project www.codeplex.com/psobject


"Keith Hill" <r_keith_hill@mailhot.nospamIdotcom> wrote in message
news:FA9B92C7-220A-4559-A6DE-9746CEF5A901@microsoft.com...
| "Corinne" <clofts@shepherd-neame.co.uk> wrote in message
| news:OHqxzCrSHHA.1036@TK2MSFTNGP03.phx.gbl...
| > Hi everyone,
| >
| > I am trying to pull a list of all the files in a directory that end with
| > ".car"
| >
| > my where-object syntax fails ont he following:
| >
| > where-object {$_name -match "*.CAR*"}
| >
| > Where is th problem? Can you help?
|
| And if you really want to test to see if the filename "ends" with .car use
| "\.car$" as your regular expression otherwise just using ".car*" would
match
| the following also:
|
| fcar
| f.car.txt
|
| --
| Keith
|

"William Stacey [C# MVP]" <william.stacey@gmail.com> wrote in message
news:eObDXBtSHHA.3500@TK2MSFTNGP05.phx.gbl...
> You know what they say. When you have a problem you need regex for...now
> you have two problems...

Heh, isn't that the truth. :-) There's a lot of power in regex's but they
aren't always easy to construct properly. It's especially dangerous
extrapolating the PowerShell wildcard/globbing syntax to regex's. Best
thing to do is create some sample input and make sure your regex is matching
and, just as important, not matching as you would expect.

I've been a casual user of regex's over the years which is a somewhat
dangerous level of knowledge to have. Right now I'm reading through the
O'Reilly Mastering Regular Expressions book (3rd edition). So far I'd have
to say that it is a good book. Hopefully in the 4th edition they will give
..NET some more love with more PowerShell and fewer Perl examples. :-)

--
Keith

> WHEN you have a problem you need regex for...

Get-ChildItem | Where {$_.extension -eq '.car'}

ls *.car

Greetings /\/\o\/\/

"Keith Hill" wrote:

> "William Stacey [C# MVP]" <william.stacey@gmail.com> wrote in message
> news:eObDXBtSHHA.3500@TK2MSFTNGP05.phx.gbl...
> > You know what they say. When you have a problem you need regex for...now
> > you have two problems...
>
> Heh, isn't that the truth. :-) There's a lot of power in regex's but they
> aren't always easy to construct properly. It's especially dangerous
> extrapolating the PowerShell wildcard/globbing syntax to regex's. Best
> thing to do is create some sample input and make sure your regex is matching
> and, just as important, not matching as you would expect.
>
> I've been a casual user of regex's over the years which is a somewhat
> dangerous level of knowledge to have. Right now I'm reading through the
> O'Reilly Mastering Regular Expressions book (3rd edition). So far I'd have
> to say that it is a good book. Hopefully in the 4th edition they will give
> .NET some more love with more PowerShell and fewer Perl examples. :-)
>
> --
> Keith
>

One option for that is the PowerShell quick reference. It has PowerShell
examples for all of the possible regex bits.

--
Lee Holmes [MSFT]
Windows PowerShell Development
Microsoft Corporation
This posting is provided "AS IS" with no warranties, and confers no rights.

"Keith Hill" <r_keith_hill@mailhot.nospamIdotcom> wrote in message
news:4BEB9661-0377-4183-B2A4-2DBE7C0A1803@microsoft.com...
> "William Stacey [C# MVP]" <william.stacey@gmail.com> wrote in message
> news:eObDXBtSHHA.3500@TK2MSFTNGP05.phx.gbl...
>> You know what they say. When you have a problem you need regex for...now
>> you have two problems...
>
> Heh, isn't that the truth. :-) There's a lot of power in regex's but
> they aren't always easy to construct properly. It's especially dangerous
> extrapolating the PowerShell wildcard/globbing syntax to regex's. Best
> thing to do is create some sample input and make sure your regex is
> matching and, just as important, not matching as you would expect.
>
> I've been a casual user of regex's over the years which is a somewhat
> dangerous level of knowledge to have. Right now I'm reading through the
> O'Reilly Mastering Regular Expressions book (3rd edition). So far I'd
> have to say that it is a good book. Hopefully in the 4th edition they
> will give .NET some more love with more PowerShell and fewer Perl
> examples. :-)
>
> --
> Keith