A straightforward way to do this is write a
wanted sub to search for the pattern, and if it matches append the current filename to an array.
Here's an example:
#!/usr/bin/perl
use warnings;
use strict;
use File::Find;
use FileHandle;
# Pattern is first argument;
# remaining arguments are file or directory names.
# Default directory is '.'
my $pat = shift;
my @results;
# Do the search
find(patternfinder(qr/$pat/,\@results),
@ARGV?@ARGV:'.');
# Print the results
print join("\n",@results),"\n";
sub patternfinder
{
# Generate a sub to search for a pattern and save the results
my($pattern,$result) = @_;
# Anonymous sub in a closure
return sub {
my $fh = new FileHandle $_, "r"
or return warn "Couldn't open '$File::Find::name': $!\n";
# Search for pattern, and add to array if it matches.
while (<$fh>) {
if (/$pattern/) {
push(@$result,$File::Find::name);
return;
}
}
close($fh)
or return warn "Couldn't close '$File::Find::name': $!\n";
}
}
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