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586.Advanced search and replace -- How to delete/remove all lines that appearred more than once?

User: editor -- 2010-08-11 << 585 587 >>

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Type: Advanced search and replace

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Description:

How to delete/remove all lines that appeared more than once?

Input Sample:

line A
line B
line A
line C

Output Sample:

line B
line C

Answer:

Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.

1. ctrl-o open source text file
2. ctrl-h open replace window
* set 'replace with pattern' to:

* click 'advanced' page, set 'run following for each matched unit' to:

3. click 'replace', done!

Screenshot 1: Replace_Window

Screenshot 2: Replace_Advanced_Window

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