I have a script running continuously, reading tail -f /var/log/daemon.log
The problem is, when the file /var/log/daemon.log gets rotated by logrotate, tail still has "file handle" for the old (rotated) file and no longer displays the contents of the new /var/log/daemon.log file
Is there any way to fix this, so that tail shows the contents of the new file, if the file was rotated ?
Yes. You're looking for tail -F instead of tail -f (that is, a capital F instead of lowercase). Check the tail(1) manpage.
Alternatively, you could use --follow=name --retry, which the man page documents as the same thing.
(These are from GNU coreutils tail. Other tails may not have this; POSIX does not specify -F, --follow, or --retry. If you have to work on those systems, I'd suggest Perl's File::Tail.)
