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Re: save only duplicate lines

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  • Bee
    Tim, thank you for the ideas. I had forgotten about marking and deleting. This is what I have working. Using :%s is more than twice as fast as :g Also no need
    Message 1 of 5 , Apr 10 4:57 PM
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      Tim, thank you for the ideas.
      I had forgotten about marking and deleting.

      This is what I have working.
      Using :%s is more than twice as fast as :g
      Also no need for the :sort iu at the end.

      function! KeepOneDup()
      let start = reltime()
      sort i
      %s/\(^.\+\n\)\1\+/@\1/ " mark and remove all but one dup
      v/^@/d " delete un-marked
      %s/^@// " remove mark
      echo reltimestr(reltime(start))
      endfun " :call KeepOneDup()<cr>

      Bill

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