Help! I have just started to work on a project that requires simple functions, but I'm not very familiar with linux or any programming languages. Could someone give me some help with simple arithmetic functions? I need to average some data and I know what I need to do, but I don't know how. I need to add up the times in column 3 and divide by the number of lines. The data looks like this:

example:
1234-5678 12 .345678
1234-5678 90 .123456

The first column is user id and process id, the second is the keystroke number, and the third is time in seconds. Could someone help me out with this? Thanks.

In reply to Basic arithmetic functions by KristiePi

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