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1154.Advanced search and replace -- How to randomly deletes x number of lines from text files?

User: Aaron -- 2013-12-05          << 1153  1155 >>
Hits: 1107
Type: Advanced search and replace   
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Description:
I would like a script that randomly deletes x number of lines from text files.
Input Sample:
line 1. aaaaaaaaaaaaa
line 2. bbbbbbbbbbb
line3. ccccccccccccc
line 4. ddddddddddd
line 5. eeeeeeeeeeeee
etc.

Remove 2 lines randomly.
Output Sample:
line 2. bbbbbbbbbbb
line3. ccccccccccccc
line 4. ddddddddddd
etc.
 
or

line 1. aaaaaaaaaaaaa
line 4. ddddddddddd
line 5. eeeeeeeeeeeee
etc.
Answer:
Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.
1. ctrl-o open text file
2. ctrl-h open 'replace' dialogue
* set 'replace with pattern' to:

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

3. click 'replace', done.
4. ctrl-s save to file.

Screenshot 1:  Replace_Window


Screenshot 2:  Replace_Advanced_Window


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