$tail -f /tmp/date{,2,05}.log

==> /tmp/date.log <==
Wed May 27 10:21:01 EEST 2009
Wed May 27 10:22:01 EEST 2009
Wed May 27 10:23:01 EEST 2009
Wed May 27 10:24:01 EEST 2009
Wed May 27 10:25:01 EEST 2009
Wed May 27 10:26:01 EEST 2009
Wed May 27 10:27:01 EEST 2009
Wed May 27 10:28:01 EEST 2009
Wed May 27 10:29:01 EEST 2009
Wed May 27 10:30:01 EEST 2009
==> /tmp/date2.log <==
Wed May 27 10:12:01 EEST 2009
Wed May 27 10:14:01 EEST 2009
Wed May 27 10:16:01 EEST 2009
Wed May 27 10:18:01 EEST 2009
Wed May 27 10:20:01 EEST 2009
Wed May 27 10:22:01 EEST 2009
Wed May 27 10:24:01 EEST 2009
Wed May 27 10:26:01 EEST 2009
Wed May 27 10:28:01 EEST 2009
Wed May 27 10:30:01 EEST 2009
==> /tmp/date05.log <==
Wed May 27 10:24:31 EEST 2009
Wed May 27 10:25:31 EEST 2009
Wed May 27 10:26:31 EEST 2009
==> /tmp/date.log <==
Wed May 27 10:31:01 EEST 2009
Wed May 27 10:32:01 EEST 2009
==> /tmp/date2.log <==
Wed May 27 10:32:01 EEST 2009
==> /tmp/date.log <==
Wed May 27 10:33:01 EEST 2009
Wed May 27 10:34:01 EEST 2009
==> /tmp/date2.log <==
Wed May 27 10:34:01 EEST 2009
^C