[lug] perl question

[j davis]

hi,

  this little piece of perl removes dups from a list..
  so they tell me. does anyone here speak extreme laymen
  and perl? Please explain how this works, i understand
  arrays and hashes and i think i understand $_ just have never
  used it. what i dont get is "++$temp{$_} < 2,"

   (this assumes @list has list that needs cleaning)
     %temp = ();
     @list = grep ++$temp{$_} < 2, @list;

thanks,              p.s. sorry about dup mail..
  jd



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