Vi delete line with second occurence of pattern Post: 302939557

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Top Forums UNIX for Dummies Questions & Answers Vi delete line with second occurence of pattern Post 302939557 by durden_tyler on Thursday 26th of March 2015 01:53:56 PM

03-26-2015

Registered User

Quote:

Originally Posted by homer4all

...
Sample pattern to delete John-------Doe

Code:

Sample data:
Time--------FName---------LName
11:05-------John------------Doe
11:05-------John------------Doe
11:06-------Michael---------Lawrence
11:06-------Michale---------Lawrence

Expected result:
11:05-------John------------Doe
11:06-------Michael---------Lawrence

Why do you expect the last line to be removed?
- It is not a duplicate since "Michale" != "Michael"
- It doesn't match the pattern either.

In any case, try this:

Code:

:%s/\v^(.*John------------Doe.*)\n\1/\1/

I have tried it in vim though. It's difficult to get a hold of vi since it's almost always a link to vim in Linux/Cygwin these days.

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