operators, but will have to be protected from interpretation by the
shell, (such as by putting quotation marks around any parenthesized
expression).
+
+Finally, results can be restricted to only messages within a
+particular time range, (based on the Date: header) with a syntax of:
+
+ <intial-timestamp>..<final-timestamp>
+
+Each timestamp is a number representing the number of seconds since
+1970-01-01 00:00:00 UTC. This is not the most convenient means of
+expressing date ranges, but until notmuch is fixed to accept a more
+convenient form, one can use the date program to construct
+timestamps. For example, with the bash shell the folowing syntax would
+specify a date range to return messages from 2009-10-01 until the
+current time:
+
+ $(date +%s -d 2009-10-01)..$(date +%s)
.SH SEE ALSO
The emacs-based interface to notmuch (available as
.B notmuch.el