+
+.RS 4
+.TP 4
+.BR \-\-duplicate=N
+
+Effective with
+.BR --output=files ,
+output the Nth filename associated with each message matching the
+query (N is 1-based). If N is greater than the number of files
+associated with the message, don't print anything.
+
+Note that this option is orthogonal with the
+.BR folder:
+search prefix. The prefix matches messages based on filenames. This
+option filters filenames of the matching messages.
+.RE
+
+.SH EXIT STATUS
+
+This command supports the following special exit status codes
+
+.TP
+.B 20
+The requested format version is too old.
+.TP
+.B 21
+The requested format version is too new.
+
+.SH SEE ALSO
+
+\fBnotmuch\fR(1), \fBnotmuch-config\fR(1), \fBnotmuch-count\fR(1),
+\fBnotmuch-dump\fR(1), \fBnotmuch-hooks\fR(5),
+\fBnotmuch-insert\fR(1), \fBnotmuch-new\fR(1),
+\fBnotmuch-reply\fR(1), \fBnotmuch-restore\fR(1),
+\fBnotmuch-search-terms\fR(7), \fBnotmuch-show\fR(1),
+\fBnotmuch-tag\fR(1)