Hello, Dear Monks, I would like fo find all the acronyms (like: HEDZ or AYTUN or YD, ...) in my Word document but my program does not seem to work and there is no error report in my STDERR file. What should I do ?

use strict;
open(STDERR, ">>stderr.log" ) or die "cannot redirect stderr output in
+ log file : $!\n";

my $file = $ARGV[0];
open my $FILE, q{<}, $file or die "cannot open the file";

my @acronyms_captured;
my %seen;

while(<FILE>){
    $_ =~ s/\s+$//;
    my @Elements  = split /\s/;
    print STDOUT "@Elements\n";
    foreach my $el (@Elements) {
        if ($el =~ /[A-Z]+/){
            if ($seen{$el} == 0){
                push @acronyms_captured, $el;
                $seen{$el} ++ ;
            }
        }
    }    
}

foreach my $acronym(@acronyms_captured){
    print STDOUT "$acronym\n";
}
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