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.TH NOTMUCH-SEARCH 1 2013-12-30 "Notmuch 0.17"
.SH NAME
notmuch-search \- search for messages matching the given search terms
.SH SYNOPSIS
.B notmuch search
.RI [ options "...] <" search-term ">..."
.SH DESCRIPTION
Search for messages matching the given search terms, and display as
results the threads containing the matched messages.
The output consists of one line per thread, giving a thread ID, the
date of the newest (or oldest, depending on the sort option) matched
message in the thread, the number of matched messages and total
messages in the thread, the names of all participants in the thread,
and the subject of the newest (or oldest) message.
See \fBnotmuch-search-terms\fR(7)
for details of the supported syntax for <search-terms>.
Supported options for
.B search
include
.RS 4
.TP 4
.BR \-\-format= ( json | sexp | text | text0 )
Presents the results in either JSON, S-Expressions, newline character
separated plain-text (default), or null character separated plain-text
(compatible with \fBxargs\fR(1) -0 option where available).
.RE
.RS 4
.TP 4
.BR \-\-format-version=N
Use the specified structured output format version. This is intended
for programs that invoke \fBnotmuch\fR(1) internally. If omitted, the
latest supported version will be used.
.RE
.RS 4
.TP 4
.B \-\-output=(summary|threads|messages|files|tags)
.RS 4
.TP 4
.B summary
Output a summary of each thread with any message matching the search
terms. The summary includes the thread ID, date, the number of
messages in the thread (both the number matched and the total number),
the authors of the thread and the subject.
.RE
.RS 4
.TP 4
.B threads
Output the thread IDs of all threads with any message matching the
search terms, either one per line (\-\-format=text), separated by null
characters (\-\-format=text0), as a JSON array (\-\-format=json), or
an S-Expression list (\-\-format=sexp).
.RE
.RS 4
.TP 4
.B messages
Output the message IDs of all messages matching the search terms,
either one per line (\-\-format=text), separated by null characters
(\-\-format=text0), as a JSON array (\-\-format=json), or as an
S-Expression list (\-\-format=sexp).
.RE
.RS 4
.TP 4
.B files
Output the filenames of all messages matching the search terms, either
one per line (\-\-format=text), separated by null characters
(\-\-format=text0), as a JSON array (\-\-format=json), or as an
S-Expression list (\-\-format=sexp).
Note that each message may have multiple filenames associated with it.
All of them are included in the output, unless limited with the
\-\-duplicate=N option.
.RE
.RS 4
.TP 4
.B tags
Output all tags that appear on any message matching the search terms,
either one per line (\-\-format=text), separated by null characters
(\-\-format=text0), as a JSON array (\-\-format=json), or as an
S-Expression list (\-\-format=sexp).
.RE
.RE
.RS 4
.TP 4
.BR \-\-sort= ( newest\-first | oldest\-first )
This option can be used to present results in either chronological order
.RB ( oldest\-first )
or reverse chronological order
.RB ( newest\-first ).
Note: The thread order will be distinct between these two options
(beyond being simply reversed). When sorting by
.B oldest\-first
the threads will be sorted by the oldest message in each thread, but
when sorting by
.B newest\-first
the threads will be sorted by the newest message in each thread.
By default, results will be displayed in reverse chronological order,
(that is, the newest results will be displayed first).
.RE
.RS 4
.TP 4
.BR \-\-offset=[\-]N
Skip displaying the first N results. With the leading '\-', start at the Nth
result from the end.
.RE
.RS 4
.TP 4
.BR \-\-limit=N
Limit the number of displayed results to N.
.RE
.RS 4
.TP 4
.BR \-\-exclude=(true|false|all|flag)
A message is called "excluded" if it matches at least one tag in
search.tag_exclude that does not appear explicitly in the search terms.
This option specifies whether to omit excluded messages in the search
process.
The default value,
.BR true ,
prevents excluded messages from matching the search terms.
.B all
additionally prevents excluded messages from appearing in displayed
results, in effect behaving as though the excluded messages do not exist.
.B false
allows excluded messages to match search terms and appear in displayed
results. Excluded messages are still marked in the relevant outputs.
.B flag
only has an effect when
.BR --output=summary .
The output is almost identical to
.BR false ,
but the "match count" is the number of matching non-excluded messages in the
thread, rather than the number of matching messages.
.RE
.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)
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