If you really want to use the least resources: Updated for newest file: 
my $report = do {
    opendir my $dh, $path or die "open '$path' $!";
    my ( $name, $mtime ) = ( '', ~0 );
    while ( my $file = readdir $dh ) {
        stat "$path/$file";
        ( $name, $mtime ) = ( $file, -M _ ) if $file =~ /B1006/ and $m
+time > -M _;
        }
    $name;
    };

[download]

In reply to Re^3: grab newest file by jwkrahn
in thread grab newest file by hasimir44

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