nawk question - addition of a column
Hi,
I have a file, like the following, where I would like to addition up column 5 (length).
DISK DEVICE TAG OFFSET LENGTH FLAGS
ARG01-05_CU0212 c3t110d2s2 c3t110d2 25186048 2076928 -
ARG03-15_CU0561 c3t110d0s2 c3t110d0 16777216 4171520 -
ARG03-15_CU0562 c3t110d1s2 c3t110d1 4194304 16754432 -
cat out | nawk -F" " '/[0-9]+/ { sum += $5 ; print $sum}'
Above is the nawk that I am trying. Firstly check it's a number, and then addition up column 5. I read a few random web-pages, and I thought this would work, but does'nt...
I am using nawk on Solaris although I think that nawk exists on many Linux distributions too.
Many thanks for any tips.
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