Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!mit-eddie!bu-cs!mirror!premise!fedeva!jbr0871
From: jbr0871@fedeva.UUCP (Blaine Robertson)
Newsgroups: comp.unix.questions
Subject: tail -f
Keywords: how does it work
Message-ID: <412@fedeva.UUCP>
Date: 6 Dec 88 16:24:42 GMT
Organization: Federal Express Corp., Memphis, TN
Lines: 9

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.

-- 
Blaine Robertson
Federal Express, Memphis, TN
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