tail -f

[Rick Kimball]

>From article <412 at fedeva.UUCP>, by jbr0871 at fedeva.UUCP (Blaine Robertson):
> Can someone please tell me how 'tail -f' works?.  Obviously, it does not
> do a busy loop while doing a stat on the file.  I know that it has got
> to be blocked, waiting for the length to change, but how does it get
> notified of a change?  Thanks in advance for any responses.


My guess is that it sleeps for a second and then tries to
read more data.





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