That is usually written like this: 

my %seen;
my @uniq = grep !$seen{$_}++, @proc_name1;

[download]

And if you want to localize the scope of the hash you could do it like this: 

my @uniq = do {
    my %seen;
    grep !$seen{$_}++, @proc_name1;
    };

[download]

In reply to Re: to select unique characters by jwkrahn
in thread to select unique characters by Abhisek

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