Question

Is there a better / simpler way to accomplish this in Python?

I have a bash script that calculates CPS (calls per second). It runs fine on small files but poorly on large ones. It basically takes the file that we are calculating the CPS for and extracts field 7 which is the INVITING time, sorts, and only gets the unique values. This is all put in a tmp.file. The script then cats the original file and greps for each of the values in the tmp.file, counts them, and outputs the time and count to a final file.

#!/bin/bash

cat $1 |cut -d "," -f 7 | sort |uniq > /tmp/uniq.time.txt;
list="/tmp/uniq.time.txt";

while read time
    do
    VALUE1=`cat $1 |grep "$time" |wc -l`;
    echo $VALUE1 >> /tmp/cps.tmp;
done < $list;

rm /tmp/cps.tmp;

Answer 1

I think what you’re trying to do is simply:

cat $1 |cut -d "," -f 7 | sort | uniq -c

note: if you want to swap the order of the fields:

| awk -F " *" '{print $3, $2}'