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1115.Replace text in multiple files -- How to remove all paragraphs(lines) that only contain single sentence?

User: editor -- 2013-08-13          << 1114  1116 >>
Hits: 1397
Type: Replace text in multiple files   
Search all Replace text in multiple files examples
I would like to manipulate a bunch of text files.
I would like to accomplish the following:
1. Extract all the paragraphs from each text
2. Output each text file into new file
3. Output files must ONLY contain paragraphs
4. Output files must NOT contain single lines, titles (first line), bullet texts.
I essentially want to clean up the existing text files and create only paragraphs from them.
Input Sample:
How is Arthritis Usually Treated?

 For most patients, arthritis is treated with pain medications as well as medications that help to reduce the amount of inflammation in the joints. By adding physical therapy and other forms of activity as well, you can increase the mobility of the joints without causing more harm to them in the process.

 In extreme cases of arthritis in which the joint is severely damaged, the joint may need to be replaced entirely.
Output Sample:
 For most patients, arthritis is treated with pain medications as well as medications that help to reduce the amount of inflammation in the joints. By adding physical therapy and other forms of activity as well, you can increase the mobility of the joints without causing more harm to them in the process.
Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.
The key points is to remove all lines that has less than 2 punctuations such as ".", "?" and "!"

1. ctrl-o open one text file
2. ctrl-h open 'replace' dialogue
* set 'replace unit' to 'Line'
* set 'search for pattern' to:

3. for single file, click 'replace', done.
4. for multiple files, click 'batch...' button to open 'batch runner' window
(1) drag multiple files to batch runner window
(2) check option of "change output folder", and select a new folder for output
(3) click 'batch replace', all modified files will be saved to new folder.

[^\.?!]*[\.?!]+[^\.?!]* means line with one . ? !
[^\.?!]+ means line without . ? !

Screenshot 1:  Replace_Window

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