My goal is to retrieve the last two rows of a csv file and do a calculation on the unix timestamp..the idea is to get a % OnTime and print the percentage of that time. The csv example rows are as follows: 
sequence,timestamp,received,sent,status
1,997891093,,Sent^M
2,997891093,,Sent^M
1,997891394,,Sent^M
3,997891394,,Sent^M
1,997891694,,Sent^M
4,997891694,,Sent^M
1,997897224,,Sent^M
5,997897224,,Sent^M
1,997897546,,Sent^M
6,997897546,,Sent^M
1,997897847,,Sent^M
7,997897847,,Sent^M
1,997898147,,Sent^M
8,997898147,,Sent^M
1,997898448,,Sent^M
9,997898448,,Sent^M
1,997898749,,Sent^M
10,997898749,,Sent^M
11,997899354,,Sent^M
12,997899654,,Sent^M
13,997899955,,Sent^M
14,997900256,,Sent^M
15,997900556,,Sent^M
16,997900860,,Sent^M
17,997901160,,Sent^M
18,997901462,,Sent^M
19,997901763,,Sent^M
20,997902064,,Sent^M
21,997902366,,Sent^M
22,997902667,,Sent^M
23,997902968,,Sent^M

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I want to get the percentage of time taken between the last two unix timestamps in the last two rows and print that percentage as follows:

97.040%
If anything is unclear, please let me know as I am happy to answer any questions.

Thanks!

qball~"I have node idea?!"

In reply to Last two rows or a csv file. by qball

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