Hello Monks, I've been working diligently on an assignment to write a perl function that will count the number of each letter a-Z in a file given by a command line argument. I have to say, I have tried as I might with no success. Here are two attempts, the first is commented (But I think it is very close!) 
#sub countChar() {
#       open (DAT, "@ARGV");
#       print "Character count\n";
#       while ($line = <DAT>){
#       my @line_words = split (//, $line);
#               foreach my $char (@line_char){
#                       if ($charCount{$char}){
#                               $charCount{$char}++;
#                       }else {
#                               $charCount{$char}=1;
#                       }
#               }
#       }
#       foreach $char (keys %charCount) {
#       print "$char => $charCount{$char}\n";
#       }
#       close(DAT, "@ARGV");
#}
#foreach $char (keys %charCount) {
#       print "$char => $charCount{$char}\n";
#}


sub countChar() {
        open (DAT, "@ARGV");
        print "Character count\n";
        while ($line = <DAT>){
                do (@word = split (/\W/, $line));
                        foreach $word (keys %charCount){
                                do (@letter = split (/\w+/, $word);
                                        $letter = (keys %charcount)}
                if ($charCount){$char}){
                        $charCount{$char}++;
                }else {
                        $charCount{$char}=1;
                }
        foreach $char (keys %charCount) {
        print "$char => $charCount{$char}\n";
        }
        close(DAT, "@ARGV");
        }
}

[download]
Thanks for any/all comments! AJ

In reply to Hash to count characters by amittleider

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