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how to add or delete blank space in .txt

 
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Top Forums UNIX for Dummies Questions & Answers how to add or delete blank space in .txt
# 1  
Old 07-18-2011
how to add or delete blank space in .txt
dear all,

i have a question.

i have a data which looks like below
rs123 AATTTTTGGGGGGCC...
rs456 TTTTTTCCCCCCCCC...
rs5767 TTTTTTTGGGGGGCC...
rs89776 GGGGCCCCCCCCC...

WHAT I WANT is adding blank space as below:
rs123 AA TT TT TG GG GG GC ...
rs456 TT TT TT CC CC CC CC ...
rs5767 TT TT TT TG GG GG GC...
rs89776 GG GG CC CC CC CC ...

does anyone have any idea?

thanks a lot!
# 2  
Old 07-18-2011
Code:
sed -e 's/\([ACGT][ACGT]\)/\1 /g' yourfile

This User Gave Thanks to pludi For This Post:
forevertl
# 3  
Old 07-18-2011
it works well. thanks a lot!!
# 4  
Old 07-19-2011
Alternate sed..
Code:
sed 's/[A-Z][A-Z]/& /g'  inputfile

 
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