How do I search a directory for all .XXX files and get a list of them in Perl?

I need to search in a directory for all the files that end in .123.

How do I (using Perl) get a list of开发者_高级运维 those files?

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Simply:

@files = glob "$dirname/*.123";

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One way is to use glob:

use warnings;
use strict;

my @files = grep { -f } glob '*.123';

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glob should do the job.
If you want to search recursively, you can use File::Find.