**notmuch** **dump** [--format=(batch-tag|sup)] [--] [--output=<*file*>] [--] [<*search-term*> ...]
+**notmuch** **reindex** [option ...] <*search-term*> ...
+
**notmuch** **search** [option ...] <*search-term*> ...
**notmuch** **show** [option ...] <*search-term*> ...
- from:<name-or-address>
+- from:/<regex>/
+
- to:<name-or-address>
- subject:<word-or-quoted-phrase>
+- subject:/<regex>/
+
- attachment:<word>
- mimetype:<word>
- query:<name>
+- property:<key>=<value>
+
The **from:** prefix is used to match the name or address of the sender
of an email message.
by including quotation marks around the phrase, immediately following
**subject:**.
+If notmuch is built with **Xapian Field Processors** (see below) the
+**from:** and **subject** prefix can be also used to restrict the
+results to those whose from/subject value matches a regular expression
+(see **regex(7)**) delimited with //.
+
+::
+
+ notmuch search 'from:/bob@.*[.]example[.]com/'
+
The **attachment:** prefix can be used to search for specific filenames
(or extensions) of attachments to email messages.
available if notmuch is built with **Xapian Field Processors** (see
below).
+The **property:** prefix searches for messages with a particular
+<key>=<value> property pair. Properties are used internally by notmuch
+(and extensions) to add metadata to messages. A given key can be
+present on a given message with several different values.
+
Operators
---------
----------------------------------
Xapian (and hence notmuch) prefixes are either **boolean**, supporting
-exact matches like "tag:inbox" or **probabilistic**, supporting a more flexible **term** based searching. The prefixes currently supported by notmuch are as follows.
-
+exact matches like "tag:inbox" or **probabilistic**, supporting a more
+flexible **term** based searching. Certain **special** prefixes are
+processed by notmuch in a way not stricly fitting either of Xapian's
+built in styles. The prefixes currently supported by notmuch are as
+follows.
Boolean
- **tag:**, **id:**, **thread:**, **folder:**, **path:**
+ **tag:**, **id:**, **thread:**, **folder:**, **path:**, **property:**
Probabilistic
- **from:**, **to:**, **subject:**, **attachment:**, **mimetype:**
+ **to:**, **attachment:**, **mimetype:**
+Special
+ **from:**, **query:**, **subject:**
Terms and phrases
-----------------
- non-range date queries, e.g. "date:today"
- named queries e.g. "query:my_special_query"
+- regular expression searches, e.g. "subject:/^\\[SPAM\\]/"
SEE ALSO
========
**notmuch(1)**, **notmuch-config(1)**, **notmuch-count(1)**,
**notmuch-dump(1)**, **notmuch-hooks(5)**, **notmuch-insert(1)**,
-**notmuch-new(1)**, **notmuch-reply(1)**, **notmuch-restore(1)**,
-**notmuch-search(1)**, **notmuch-show(1)**, **notmuch-tag(1)**
+**notmuch-new(1)**, **notmuch-reindex(1)**, **notmuch-reply(1)**,
+**notmuch-restore(1)**, **notmuch-search(1)**, **notmuch-show(1)**,
+**notmuch-tag(1)**