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781.Text file parser -- How to extract all lines with numbers from many text files?

User: editor -- 2011-05-18          << 780  782 >>
Hits: 2347
Type: Text file parser   
Search all Text file parser examples
How to extract all lines with numbers from many text files, and write the result to a single file?
Input Sample:
this line has no number
this line has number 123
has number 333
no number
Output Sample:
this line has number 123
has number 333
Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.
1. open "Tools->Batch Runner" window
2. drag multiple text files from windows file browser to "Batch Runner" window
3. click "Fast Replace" button
* click "Add" button
set "Search" to:

set "Replace" to:

click "ok"
* uncheck option of "Cross Line", check option of "Reg Exp" and "Extract"
* click "Start" button
* select "output to single file" button, and enter output filename, all lines will be output to the file.

Screenshot 1:  Fast_Replace_Window

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