Regex to find a file in folder

Question

How to find all files matches a regex pattern in a folder?

Thanks

+1 This is a short and direct question and i think it was deserved to get point. — QMaster, May 15 '14 at 16:22

score 14 · Accepted Answer · edited Aug 24 '10 at 08:21

14

The GetFiles method allows you to specify a wildcard pattern but not really a regex. Another possibility is to simply loop through the files and validate their name against a regex.

IEnumerable<string> files = Directory
    .EnumerateFiles(@"c:\somePath")
    .Where(name => Regex.IsMatch(name, "SOME REGEX"));

edited Aug 24 '10 at 08:21

Fredrik Mörk

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answered Aug 24 '10 at 08:13

Darin Dimitrov

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The `Directory.EnumerateFiles` was a great addition to .NET 4.0 as it returns `IEnumerable` instead of `string[]` meaning that unless you start enumerating it won't block. – Darin Dimitrov Aug 24 '10 at 08:21
btw, `Directory.EnumerateFiles` is a .NET 3.5 feature – abatishchev Aug 24 '10 at 08:26
@abatishchev, no it isn't, checkout the doc: http://msdn.microsoft.com/en-us/library/dd383458.aspx – Darin Dimitrov Aug 24 '10 at 08:28
@abatishchev: Read that document more closely. Specifically the Version Information part which says "Supported in: 4". – Tergiver Aug 24 '10 at 16:30

score 0 · Answer 2 · answered Aug 24 '10 at 08:13

0

Regex matching of filesystem is not supported you will have to iterate through each of the files in the directory and check them individually

answered Aug 24 '10 at 08:13

Nissim

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Regex to find a file in folder

2 Answers2

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