Sum up the column values group by using some field

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11-13-2012

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Quote:

Originally Posted by manas_ranjan

Hi Pamu,

just in curious, what is the purpose of passing two times the file name at the end of command?

and if we want to format the output as below,

Code:

printf ("%10s %25s %10d\n",$1,$2,$3)

how to achieve ?

Here we are passing two times file name because we are performing operations twice on a file.

for your format try.

Code:

awk -F, 'NR==FNR{if($2 ~ /VAR/){X[$1]+=$3};next}
 {if($2 ~ /VAR/ ){if(! arr[$1]){$2="TOTAL_VAR";$3=X[$1];printf ("%10s %25s %10d\n",$1,$2,$3);arr[$1]++}else{P=0}}else{printf ("%10s %25s %10d\n",$1,$2,$3)}}'  file file

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