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Total of a column from a file

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# 1  
Old 04-15-2013
Total of a column from a file
Hi
i need to calculate the total of a column from a file in ksh

Code:
vi file.txt

System : CBSE ent=0.1 me=Cap

Subject    Maths  Science
xxxxx        56    98
yyyy         89    67
ooo          67    32

Here i need to calculate only the total of Maths column alone i.e., 56+89+67

Please help..
# 2  
Old 04-15-2013
Try like..
Code:
 awk '{print $2}' test1.txt|grep '[0-9]'|awk '{sum+=$1} END {print sum}'

# 3  
Old 04-15-2013
Code:
awk 's{a+=$2}
    /Subject/{s=1}
    END{print a}' file

# 4  
Old 04-15-2013
Quote:
Originally Posted by bmk
Try like..
Code:
 awk '{print $2}' test1.txt|grep '[0-9]'|awk '{sum+=$1} END {print sum}'

I think, You don't need so much of pipes.

Code:
awk '$2 ~ /[0-9]/{sum+=$1} END {print sum}' test1.txt

Cheers,
Ranga Smilie
# 5  
Old 04-15-2013
Quote:
Originally Posted by rangarasan
I think, You don't need so much of pipes.

Code:
awk '$2 ~ /[0-9]/{sum+=$1} END {print sum}' test1.txt

Cheers,
Ranga Smilie
Highlighted one should be $2.

And as per the OP's input it can be written as....

Code:
awk '{sum+=$2}END{print sum}' file

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