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 [..!mirror!premise, ..gatech!emcard]!fedeva!jbr0871