Re: Deleting duplicate lines _without_ sorting

Hi Stefan,

I would do simple macro like this one (before starting recording macro
place cursor on the first column of the first line you want to check):
qa -- start recording macro 'a'
y$ -- copy whole line
j -- place the cursor one line down
:,$g/ -- we want to delete every duplicate of copied line to the end
of file so we do the global command
<C-r>" -- this should paste the copied line
/d<CR> -- and tell vim to delete these duplicate lines, <CR> means
that you should press enter
<C-o> -- place cursor back to the last place (the line below the
checked line recently)
q -- stop recording

and then 999@a should remove all duplicate lines.

I tested it on simple file but I don't say this will be always
correct. Just try it.

Best Regards,
Karol Samborski

2011/7/6 Stefan Klein <st.fankl.in@googlemail.com>:
> Hi vim users,
> i got a longer SQL script with duplicate inserts :/
> I'd like to remove those without sorting the whole file.
> It's possible to match the lines by a pattern.
> One solution might be to insert the line number at the end of the line,
> sort the file,
> delete duplicate lines ignoring the linenumber,
> move the line number to the start of the line,
> sort,
> remove the line number.
> Is there a more simple way?
> thanks,
> Stefan
>
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