Question

Wondering if someone could point me in right direction using bash shell scripting and awk to add up several column/fields and print out a summary.

I want to take stats outputted in the following format

REQ_RATE REQ_PROCESSING: 0, REQ_PER_SEC: 1.0, TOT_REQS: 2,
REQ_RATE CACHE_HITS_PER_SEC: 0.5, TOTAL_CACHE_HITS: 10
REQ_RATE REQ_PROCESSING: 0, REQ_PER_SEC: 2.0, TOT_REQS: 0,
REQ_RATE CACHE_HITS_PER_SEC: 0.5, TOTAL_CACHE_HITS: 20
REQ_RATE REQ_PROCESSING: 0, REQ_PER_SEC: 3.0, TOT_REQS: 2,
REQ_RATE CACHE_HITS_PER_SEC: 0.5, TOTAL_CACHE_HITS: 30
REQ_RATE REQ_PROCESSING: 0, REQ_PER_SEC: 4.0, TOT_REQS: 1,
REQ_RATE CACHE_HITS_PER_SEC: 0.5, TOTAL_CACHE_HITS: 40
REQ_RATE REQ_PROCESSING: 0, REQ_PER_SEC: 5.0, TOT_REQS: 0,
REQ_RATE CACHE_HITS_PER_SEC: 0.5, TOTAL_CACHE_HITS: 50

and total them up for one line output like

REQ_RATE REQ_PROCESSING: 0, REQ_PER_SEC: 15.0, TOT_REQS: 5,
REQ_RATE CACHE_HITS_PER_SEC: 2.5, TOTAL_CACHE_HITS: 150

thanks

Answer 1

awk is really easy to use.

$ awk '/REQ_PROCESSING/{x+=$3; y+=$5; z+=$7}; END{print x, y, z}' input.txt
0 15 5

I think you can do the rest. Happy coding!