On Apr 4, 2011, at 5:31 PM, Daniel M. Eldridge wrote:
> I have a file that consists of approx 400K lines and 25762K chars
>
> this work is the result of someone who has copied existing files onto itself
> multiple times.
>
> In an effort to "decrypt" this mess I am:
> a) inserting .pp to indicate paragraph beginnings
> b) replacing sentence endings with \r so that each line consists of one
> "sentence."
> c) sorting all of the lines so that I can use uniq to generate a list of
> unique sentences.
>
> While this works it fails to provide any context, therefore I want to insert
> the line number @ the beginning of each line and follow it with a tab and
> then have uniq ignore the first field with:
> uniq --skip-fields=1
>
> or, if I pad line numbers with leading zeros I could use:
> uniq --skipchars=6
>
> So my question is:
> How do I insert the current line number into a text file; how can I do this
> while padding to six digits?
This should do the trick:
:%s/^/\=repeat(0,6-len(line('.'))).line('.').'^I'/
^I represents a tab. It adds the number of zeros, the line number and the tab.
It uses :help sub-replace-expression
Israel
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