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Sum with awk

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# 1  
Old 04-06-2009
Sum with awk
Hi,consider this fields,

$1 $2 $3
981 0 1
984 0 4
985 1 0
987 0 2
990 0 0
993 0 3
995 2 0
996 0 1
999 0 4

for each occurence of zero in column $2 and $3 I need to sum $1 fields, so for example, in this piece of code the result of $1 is 8910. I'm sure that awk is suitable for this, but I don't know the right sintax (I've base knowledge of awk). Can someone suggest me?Thanks
# 2  
Old 04-06-2009
This should totalize the 1st field if the 2nd field or the 3th field is 0:

Code:
awk '$2==0 || $3 == 0 {s+=$1} END {print s}'

Regards
# 3  
Old 04-06-2009
thanks!
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