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811.Text file parser -- How to extract and remove common lines from multiple files?

User: bruce lee -- 2011-06-30          << 810  812 >>
Hits: 3044
Type: Text file parser   
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how to extract all the lines contained in file A,B,C and D?And delete the common content from A,B,C and D?
Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.
Steps to extract common lines from multiple files: 
1. ctrl-h open 'replace' dialog 
* set 'replace with pattern' to: 
* click 'advanced' tab, set 'run following for each matched unit' to: 
2. click 'Batch...' button open 'batch runner' 
3. drag multiple files A,B,C,D to batch runner window 
4. change 'set output filename' to blank so no file will be written. 
5. click 'batch replace', common lines will be extracted 
6. ctrl-s save common line to common.txt 
Steps to remove common line in multiple files: 
7. ctrl-h open 'replace' dialog 
* set 'replace unit' to 'Line' 
* set 'If' to: 
8. click 'Batch...' button, and drag multiple files to batch runner window, set output filename to ${FILENAME}, 
9. click 'Batch Replace'. 

Screenshot 1:  Extract common line, 'replace':

Screenshot 2:  Extract common line, 'advanced':

Screenshot 3:  Remove common line, 'replace':

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