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How to make a new line of the file?

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# 1  
Old 10-03-2013
How to make a new line of the file?
Hi,

I have a file (newfile.txt) with the contents below:
Code:
This is a new file. This is a new file. This is a new file. This is a new file.

How could I make a new line of the file as below?
Code:
This is a new file. 
This is a new file. 
This is a new file. 
This is a new file.

When there is a keyword "This is" it will be making it a new line.
I know awk can do this, appreciate if anyone can help.

Thanks!
Last edited by Scott; 10-03-2013 at 06:13 AM.. Reason: Code tags
# 2  
Old 10-03-2013
Probably not perfect, but:
Code:
$ awk '{gsub(/  *This is/, "\nThis is", $0)}1' file
This is a new file.
This is a new file.
This is a new file.
This is a new file.

# 3  
Old 10-03-2013
Code:
sed s/T/\nT/g /path/to/file

Should work but is untested.
# 4  
Old 10-03-2013
This just add "n" before every T, so not working. What if word is starting with Test.
This should not be triggered, only "This is"
# 5  
Old 10-03-2013
Well actualy, focusing on "This" is wrong either..
So it'll should be better to use any capital letter as indicator for a new line..
As you most surley dont have a file filled with "This is a new line." strings...

Code:
sed s/"\.\ "/"\.\n"/g  /path/to/file

However, if there is a space after a 'dot', it makes a new linebreak after it while cutting the trailing (1) space.

hth
Last edited by sea; 10-03-2013 at 11:29 AM.. Reason: quotes
# 6  
Old 10-03-2013
Code:
sed -r 's/\. +([A-Z])/\.\n\1/g' file

# 7  
Old 10-03-2013
Code:
When there is a keyword "This is" it will be making it a new line.

This is some of the request.
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