For one, your parentheses are outside of the regular expression so you aren't really capturing anything. For two, I don't think your pattern match is quite right anyway. What does "strings that start with dollar sign" mean? Do you want only those lines that begin with dollar signs or do you want any dollar sign followed by a sequence of alphanumerics? The former would look more like /^$(.*)/ and the latter would look like /($\w+)/. The ^ in your pattern confuses me. Also, since you want the unique entries, you should stick them in a hash. One of the defining properties of a hash is that the keys are unique. So something like ...

while (<>) {
   chomp;
   $hash{$1}++ if /($\w+)/;
}
print map { "$_\n" } keys %hash;

[download]

But again, I'm still not sure what you're trying to match really

PerlJam

In reply to Re: parse for string, then print unique by duff
in thread parse for string, then print unique by mhearse

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