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05-02-2008
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sum of more than 1 column
Hi
I want to sum of 3 columns in file. Example: I want to sum of 3 ,6,8 th columns in file(SUM(3,6,8)). Using awk can sum of single column awk '{a+=$3} END {printf ("%f\n",a)' file_name Thanks inadvance MR 
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05-02-2008
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Code:
awk '{a+=$3+$6+$8} END {printf ("%f\n",a)' file_name
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