Provided by: notmuch_0.38.3-5ubuntu1_amd64 

NAME
notmuch - thread-based email index, search, and tagging
SYNOPSIS
notmuch [option ...] command [arg ...]
DESCRIPTION
Notmuch is a command-line based program for indexing, searching, reading, and tagging large collections
of email messages.
This page describes how to get started using notmuch from the command line, and gives a brief overview of
the commands available. For more information on e.g. notmuch show consult the notmuch-show man page, also
accessible via notmuch help show
The quickest way to get started with Notmuch is to simply invoke the notmuch command with no arguments,
which will interactively guide you through the process of indexing your mail.
NOTE
While the command-line program notmuch provides powerful functionality, it does not provide the most
convenient interface for that functionality. More sophisticated interfaces are expected to be built on
top of either the command-line interface, or more likely, on top of the notmuch library interface. See ‐
https://notmuchmail.org for more about alternate interfaces to notmuch. The emacs-based interface to
notmuch (available under emacs/ in the Notmuch source distribution) is probably the most widely used at
this time.
OPTIONS
Supported global options for notmuch include
--help [command-name]
Print a synopsis of available commands and exit. With an optional command name, show the man page
for that subcommand.
--version
Print the installed version of notmuch, and exit.
--config=FILE
Specify the configuration file to use. This overrides any configuration file specified by
NOTMUCH_CONFIG. The empty string is a permitted and sometimes useful value of FILE, which tells
notmuch to use only configuration metadata from the database.
--uuid=HEX
Enforce that the database UUID (a unique identifier which persists until e.g. the database is
compacted) is HEX; exit with an error if it is not. This is useful to detect rollover in
modification counts on messages. You can find this UUID using e.g. notmuch count --lastmod
All global options except --config can also be specified after the command. For example, notmuch
subcommand --uuid=HEX is equivalent to notmuch --uuid=HEX subcommand.
COMMANDS
SETUP
The notmuch setup command is used to configure Notmuch for first use, (or to reconfigure it later).
The setup command will prompt for your full name, your primary email address, any alternate email
addresses you use, and the directory containing your email archives. Your answers will be written to a
configuration file in NOTMUCH_CONFIG (if set) or ${HOME}/.notmuch-config . This configuration file will
be created with descriptive comments, making it easy to edit by hand later to change the configuration.
Or you can run notmuch setup again to change the configuration.
The mail directory you specify can contain any number of sub-directories and should primarily contain
only files with individual email messages (eg. maildir or mh archives are perfect). If there are other,
non-email files (such as indexes maintained by other email programs) then notmuch will do its best to
detect those and ignore them.
Mail storage that uses mbox format, (where one mbox file contains many messages), will not work with
notmuch. If that's how your mail is currently stored, it is recommended you first convert it to maildir
format with a utility such as mb2md(1) before running notmuch setup.
Invoking notmuch with no command argument will run setup if the setup command has not previously been
completed.
OTHER COMMANDS
Several of the notmuch commands accept search terms with a common syntax. See notmuch-search-terms for
more details on the supported syntax.
The notmuch-search, notmuch-show, notmuch-address and notmuch-count commands are used to query the email
database.
The notmuch-reply command is useful for preparing a template for an email reply.
The notmuch-tag command is the only command available for manipulating database contents.
The notmuch-dump and notmuch-restore commands can be used to create a textual dump of email tags for
backup purposes, and to restore from that dump.
The notmuch-config command can be used to get or set settings in the notmuch configuration file.
EXTERNAL COMMANDS
If the given command is not known to notmuch, notmuch tries to execute the external notmuch-<subcommand>
in PATH instead. This allows users to have their own notmuch related tools to be run via the notmuch
command. By design, this does not allow notmuch's own commands to be overridden using external commands.
The environment variable NOTMUCH_CONFIG will be set according to --config, if the latter is present.
OPTION SYNTAX
All options accepting an argument can be used with '=' or ':' as a separator. Except for boolean options
(which would be ambiguous), a space can also be used as a separator. The following are all equivalent:
notmuch --config=alt-config config get user.name
notmuch --config:alt-config config get user.name
notmuch --config alt-config config get user.name
DUPLICATE MESSAGE FILES
Notmuch considers the Message-ID to be the primary identifier of message. Per RFC 5322 the Message-ID is
supposed to be globally unique, but this fails in two distinct ways. When you receive copies of a message
via a mechanism like Cc or via a mailing list, the copies are typically interchangeable. In the case of
some broken mail sending software, the same Message-ID is used for completely unrelated messages. The
options search --duplicate and show --duplicate options provide the user with control over which message
file is displayed. Front ends will need to provide their own interface, see e.g. the Emacs front-end
Dealing with duplicates.
ENVIRONMENT
The following environment variables can be used to control the behavior of notmuch.
NOTMUCH_CONFIG
Specifies the location of the notmuch configuration file. See notmuch-config for details.
NOTMUCH_DATABASE
Specifies the location of the notmuch database. See notmuch-config for details.
NOTMUCH_PROFILE
Selects among notmuch configurations. See notmuch-config for details.
NOTMUCH_TALLOC_REPORT
Location to write a talloc memory usage report. See talloc_enable_leak_report_full in talloc(3)
for more information.
NOTMUCH_DEBUG_QUERY
If set to a non-empty value, the notmuch library will print (to stderr) Xapian queries it
constructs.
SEE ALSO
notmuch-address, notmuch-compact, notmuch-config, notmuch-count, notmuch-dump, notmuch-hooks,
notmuch-insert, notmuch-new, notmuch-properties, notmuch-reindex, notmuch-reply, notmuch-restore,
notmuch-search, notmuch-search-terms, notmuch-show, notmuch-tag
The notmuch website: https://notmuchmail.org
CONTACT
Feel free to send questions, comments, or kudos to the notmuch mailing list <notmuch@notmuchmail.org> .
Subscription is not required before posting, but is available from the notmuchmail.org website.
Real-time interaction with the Notmuch community is available via IRC (server: irc.libera.chat, channel:
#notmuch).
AUTHOR
Carl Worth and many others
COPYRIGHT
2009-2024, Carl Worth and many others
0.38.3 Mar 11, 2025 NOTMUCH(1)