To keep the forums high quality for all users, please take the time to format your posts correctly.

First of all, use Code Tags when you post any code or data samples so others can easily read your code. You can easily do this by highlighting your code and then clicking on the # in the editing menu. (You can also type code tags [code] and [/code] by hand.)

Second, avoid adding color or different fonts and font size to your posts. Selective use of color to highlight a single word or phrase can be useful at times, but using color, in general, makes the forums harder to read, especially bright colors like red.

Third, be careful when you cut-and-paste, edit any odd characters and make sure all links are working property.

Thank You.

The UNIX and Linux Forums

---------- Post updated at 11:04 AM ---------- Previous update was at 10:49 AM ----------

First of all, you're missing a '}' in the END block.
Secondly, in the END block you have a loop counting from 0 going through ALL the numbers to the highest REGARDLESS whether an ID was found or not. If the number/id has not been found, you still try to access the array indexed by this 'id'. My 'awk/nawk' on Solaris didn't complain - maybe your 'mawk' on whatever OS you're on is less 'forgiving'.
As an alternative try that:

Code:

END {
      #for  ( num = 0; num <= highest_packet_id; num++ ) {
      for  ( num in start_time) {
                start = start_time[num];
                end = end_time[num];
                 if ( start < end )
                        delay = end - start;
      }
}

OR (if you want to process the IDs in ascending order:

Code:

END {
      for  ( num = 0; num <= highest_packet_id; num++ ) {
                if (!(num in start_time)) continue
                start = start_time[num];
                end = end_time[num];
                 if ( start < end )
                        delay = end - start;
      }
}

You're not outputting anything in the END block, so it's hard to judge.