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Hi,

> > Since tail only processes a single file at a time, tail -f on multple
> > files just doesn't make sense.
>=20
> That's funny; it makes sense to me - and, apparently, a bunch of other
> people....
>=20
> > If you want the merged output from many files just run multiple
> > copies of tail -f in the background....
>=20
> ...and then how to suspend them all, and resume them all, together?
>=20
> I suppose sh -c '(for f in file1 file2 file3; do echo tail -f "$f &";
> done; echo wait) | sh' works, after a fashion.  But that doesn't ID the
> file -f-generated output belongs to.

Just FYI, here are the original FreeBSD commits to implement kqueue
based tail -f on multiple files, which you may have interest to take a
look at:

http://lists.freebsd.org/pipermail/cvs-src/2004-November/034563.html
http://lists.freebsd.org/pipermail/cvs-src/2005-January/038281.html
http://lists.freebsd.org/pipermail/cvs-src/2005-January/038419.html
http://lists.freebsd.org/pipermail/cvs-src/2005-February/039831.html

Cheers,
--=20
Xin LI <delphij delphij net>  http://www.delphij.net/

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