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Full Discussion: Filter on one column and then perform conditional calculations on another column with a Linux script
Top Forums Shell Programming and Scripting Filter on one column and then perform conditional calculations on another column with a Linux script Post 302940168 by Don Cragun on Wednesday 1st of April 2015 08:40:19 PM
Old 04-01-2015
Quote:
Originally Posted by Zooma
Ok, so here is the input file I'm using now (sorting it beforehand):

Code:
1.2.3.4 0.01 123 500
1.2.3.4 0.44 123 500
1.2.3.4 0.48 123 500
1.2.3.4 0.52 124 800
1.2.3.5 0.03 44  1500
1.2.3.5 0.08 44  1500
1.2.3.5 0.83 45  80

And the code:

Code:
#!/bin/bash

awk '{ 

$1 != tempIp {
	maxOverallTime = 0
	tempIp = $1
	noSuccPackPerIp=0
	transBytesPerIp=0
	
	while (tempIp == $1){
			transBytesPerIp=0
					
		if($3 != lSeqNo)
		{
			minTime = maxTime = $2
			cnt = 0
			
		
			transBytesForSeqNo = $4

			
			while($3 == lSeqNo) {
				maxTime = $2
				cnt++
				next
			}
			
			if ((maxTime-minTime)>maxOverallTime){
				maxOverallTime=(maxTime-minTime)
			}
			
			if (count<10){
				noSuccPackPerIp++
				transBytesForSeqNo=0
			}
			transBytesPerIp += transBytesForSeqNo
			lSeqNo = $3
			
	
		}
	}
	#printf("%17s %7d %11.3f %f %f %15d\n", tempIp, (maxTime-minTime)/cnt, maxOverallTime, cnt, noSuccPackPerIp, transBytesForSeqNo)
}}' statsSortedX.txt

Have commented out all printouts to just see if I can get the core code to work. These are the error messages:

Code:
awk: line 3: syntax error at or near {
awk: line 42: syntax error at or near }

Thanks for looking at this.

/Z
If you remove the outer pair of braces (shown in red), you'll have a syntactically correct awk script that will run. But, it also has an infinite loop while processing the 1st line in your input file (the while loop also shown in red).

I'm trying to get through your requirements in post #4, and am working on a script to meet those requirements, but I have some other things on my plate right now (so it may be a while before I can post something that works).

It would help if you can post a little more data (showing the results you're trying to get when you have an IP address with unsuccessful retransmissions).

And, please explain what the units are on the timestamps in the 2nd field in your input file. I was assuming that an entry like 0.87 was 87 one hundredths of a second, but you then put a colon in the output and talk about it being minutes and seconds. (But, if that was the case shouldn't the input have been shown as 1:27 instead of as 0.87???)
This User Gave Thanks to Don Cragun For This Post:
Zooma
 

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