Monday, 29 December 2008

sum of 2nd column of 4 files

suppose i have 4 files like ip1,ip2,ip3,ip4. I want to sum all the second column values of all the four files with each file containing dot seperated content like etc..How to do using awk in one line?

awk -F"." '{sum+=$2} END {print sum}' ip*

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