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Replace all variables in a column

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# 1  
Old 05-12-2014
Replace all variables in a column
Hey,
I have a 4 column file
Code:
chr10    102827739    102827754    0.47619
chr10    102899308    102899323    2.76087
chr10    102977200    102977215    0.384615
chr10    102985228    102985243    2.4697
chr10    103051370    103051385    1.74359

And want to add a specific value to all entries in columns 2 and 3. Example: add 10, so that line one would become:
Code:
chr10    102827749    102827764    0.47619

and so on.
Thanks and sorry, I'm a total newby.
Cheers
Last edited by Franklin52; 05-12-2014 at 05:23 AM.. Reason: Please use code tags
# 2  
Old 05-12-2014
Is this a homework assignment?
# 3  
Old 05-12-2014
Nope, I'm a biologist and am trying to change the chromosome sites for analysis.
I was about to delete the post but couldn't figure out how -.-

Code:
awk ' { $2=$2+10; print }

worked for me.
Last edited by Don Cragun; 05-12-2014 at 05:41 AM.. Reason: Add CODE tags.
# 4  
Old 05-12-2014
Quote:
Originally Posted by jfern
Nope, I'm a biologist and am trying to change the chromosome sites for analysis.
I was about to delete the post but couldn't figure out how -.-

awk ' { $2=$2+10; print }

worked for me.
Please use CODE tags when posting sample input, output, and code segments.

You said you wanted to add 10 to the values in column 2 AND column 3.
Try:
Code:
awk '{$2 += 10; $3 += 10;print}' file

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