If, as it appears, you are trying to find a file with a fixed name rather than a group of files with a common part to their name, no regexp is required. Just perform a string comparison on the filename.
if ($file eq 'carlos.txt')
This script will list everything in the directory where the script is located and point out the file named 'carlos.txt'
use strict;
my $file;
# Read the current directory into an array
opendir(my $dir, '.');
my @files = readdir($dir);
closedir ($dir);
# Iterate over array to file file
foreach $file(@files) {
print "$file";
if ($file eq 'carlos.txt') {
print " <------------- Found File";
}
print "\n";
}
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