Question

I have a file with the following values:

for 3 threads: Average time taken for API1 is: 19097.7 nanoseconds. Average time taken for API2 is: 19173.1 nanoseconds. Average time taken for API2 is: 19777.7 nanoseconds. Average time taken for API2 is: 19243.1 nanoseconds. Average time taken for API1 is: 19737.7 nanoseconds. Average time taken for API2 is: 19128.1 nanoseconds. for 5 threads: Average time taken for API1 is: 19097.7 nanoseconds. Average time taken for API2 is: 19173.1 nanoseconds. Average time taken for API2 is: 19777.7 nanoseconds. ... 

I wish to calculate the sum of the 1API lines and the 2API lines, and sum them. Another requirement is that i also want to figure out for each thread on a separate basis. Is there a way to do this using perl, sed, awk or just shell scripts?

What I can current get is:

cat result | grep API1 | awk {'print $7'} 

Answer 1

You can use a combination of grep en awk. grep to select only the lines with data (where API is in) and awk for the counting.

grep API file | awk '{ arr[$5]+=$7 } END {for (i in arr) {print i,arr[i]}   } ' - 

(change file with filename or remove for reading from stdin)

If you want to calculate the different sums you can do this

awk '{ if($1 == 'for') id = $2; else arr[id $5]+=$7 } END {for (i in arr) {print i,arr[i]}   } ' testfile 

Output:

5API1 19097.7 5API2 38950.8 3API1 38835.4 3API2 77322