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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: 1563
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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