Build a regular expression that will match those countries, then scan through the file and check each line against it: 
    my $regex = join '|', @latin_am;
    while (<>) {
        print $1 if /$regex/;
    }

[download]
This reads from STDIN, so invoke it like this: 
    % foo.pl file

[download]

In reply to Re: matching an array of alternates by btrott
in thread matching an array of alternates by Anonymous Monk

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