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delete rows with a criteria

 
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# 1  
Old 04-26-2012
delete rows with a criteria
Hi,

I would like to know how can I delete rows of a text file if from the 3rd column onwards there is only zeros?

Thanks in advance
# 2  
Old 04-26-2012
Please provide an input sample and desired output and what you have tried so far..
# 3  
Old 04-26-2012
Thanks for the reply.

Example Input file:

Code:
a b 0 0 0 0 0
a d 0 1 0 0 1.5
d r 0 0 0 0 0

Desired output file:

Code:
a d 0 1 0 0 1.5

Last edited by Scrutinizer; 04-26-2012 at 04:22 PM.. Reason: code tags
# 4  
Old 04-26-2012
Perhaps:
Code:
egrep -v "^[^ ]+ +[^ ]+( +0)*$" filename > outfile

# 5  
Old 04-26-2012
another way
Code:
awk '{x=0;for(i=3;i<=NF;i++)x+=$i}x>0' infile

# 6  
Old 04-26-2012
Code:
awk '$3||$4||$5||$6||$7' infile

These 2 Users Gave Thanks to Scrutinizer For This Post:
47shailesh shamrock
# 7  
Old 04-27-2012
Code:
awk '{for(i=3;i<=NF;i++)if($i>0){print;next}}' input.txt

 
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