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i tried following but its not working,

awk '{ arr[$1]=arr[$1]+$2} { for (i in arr) print i,arr[i] } ' file1 file2

i was not sure how to deal with 3 columns, so i only tried working with 2 i.e....

Hi,
I am trying to process 2 files simultaneously using awk satisfying following condition,

Both files contain 3 columns. It should take entry from column 1 from first file, look for that entry...