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889.Text file parser -- How to extract all lines that has no leading spaces?

User: editor -- 2011-11-19          << 888  890 >>
Hits: 3858
Type: Text file parser   
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Description:
How to extract all lines without leading spaces?
Input Sample:
line1 
line2 
<space>line3 
lin4 
<space>line5
Output Sample:
line1 
line2 
line4
Answer:
Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.
We can remove all lines that has leading spaces, the rest lines will have no leading spaces. 
1. ctrl-o open text file 
2. ctrl-h open 'replace' dialogue 
* set 'replace unit' to 'Line' 
* set 'search for pattern' to: 
 
3. click 'replace', all lines that has leading space(\s) will be removed.

Screenshot 1:  Replace_Window


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