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196.Advanced search and replace -- How to remove/delete all lines not containing 'abc'(only keep lines containing 'abc')?

User: editor -- 2008-06-21          << 195  197 >>
Hits: 1696
Type: Advanced search and replace   
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Description:
How to remove all lines not containing 'abc'(only keep lines containing 'abc')?
Input Sample:
line1 xxxx
line2 abc dddddd
line3 ffffffffff
line4 eeeeeeabcee
Output Sample:
line2 abc dddddd
line4 eeeeeeabcee
Answer:
Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.
1. ctrl-o open your text file 
2. ctrl-h open 'Replace' dialog 
* set 'Replace Unit' to 'Line' 
* set 'Search for pattern' 

* select option [v]Enhanced Regular Expression
* set nothing in 'Replace with Pattern' 
3. click 'Replace', done! 

Note: here "!abc" here is a enhanced regular expression, "!" means not.
Download Script:  scripts/196.rst.zip

Screenshot 1:  Replace_Window


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