dear monks, I hope this question is not so stupid but I can solve small point. I would like to substitute some of the values of a string line. Thus I wrote the following snippet:
my @array = qw('a3-da-um-=TUG2-:II 1 AKTUM-=TUG2 1 IB2-:4-=TU[G2 S[A]6
+ DAR);
   for my $word(@array) {
      if ($word =~ /(\(U)(\[|\])?(\w)?(2)/) {
         $& =~ s/$1/Ú/;
         $$ =~ s/$4//;
   }
print "@array\n";

[download]

well, I'm tring to substitute the matched value "UG2" with "ÚG", but when the script is loaded it return the following message: "Modification of a read-only value attempted at line ...". It refers to $&, but I don't understand what this message means.
Thank you

In reply to $& as a read-only value by frasco

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