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MAIRIX(1)		    General Commands Manual		     MAIRIX(1)

NAME
       mairix -	index and search mail folders

SYNOPSIS
   Indexing
       mairix  [  -v|--verbose	]  [  -p|--purge  ] [ -f|--rcfile mairixrc ] [
       -F|--fast-index ] [ --force-hash-key-new-database hash ]

   Searching
       mairix [	-v|--verbose ] [ -f|--rcfile mairixrc ]	[ -r|--raw-output ]  [
       -x|--excerpt-output ] [ -H|--force-hardlinks ] [	-o|--mfolder mfolder ]
       [ -a|--augment ]	[ -t|--threads ] search-patterns

   Other
       mairix [	-h|--help ]

       mairix [	-V|--version ]

       mairix [	-d|--dump ]

DESCRIPTION
       mairix indexes and searches a collection	of email messages.  The	 fold-
       ers  containing the messages for	indexing are defined in	the configura-
       tion file.  The indexing	stage produces a database file.	 The  database
       file  provides  rapid  access to	details	of the indexed messages	during
       searching operations.  A	search normally	produces a  folder  (so-called
       mfolder)	containing the matched messages.  However, a raw mode (-r) ex-
       ists which just lists the matched messages instead.

       It can operate with the following folder	types

       *      maildir

       *      MH (compatible with the MH folder	formats	used by	xmh, sylpheed,
	      claws-mail, nnml (Gnus) and evolution)

       *      mbox  (including	mboxes	that have been compressed with gzip or
	      bzip2)

       *      IMAP: remote folders on an IMAP server

       If maildir or MH	source folders are used,  and  a  search  outputs  its
       matches	to an mfolder in maildir or MH format, symbolic	links are used
       to reference the	original messages inside  the  mfolder.	  However,  if
       mbox folders are	involved, copies of messages are made instead. If IMAP
       folders are used	for both source	results, IMAP  server-side  copies  of
       messages	 are  made. With IMAP source folders and any other type	of re-
       sults folder, messages are downloaded from the IMAP server to be	 writ-
       ten  to	the  results folder. With an IMAP results folder and any other
       type of source folders, messages	are uploaded to	the IMAP server	to  be
       appended	to the results folder.

OPTIONS
       mairix decides whether indexing or searching is required	by looking for
       the presence of any search-patterns on the command line.

   Special modes
       -h, --help
	      Show usage summary and exit

       -V, --version
	      Show program version and exit

       -d
	      Dump the database's contents in human-readable form to stdout.

   General options
       -f mairixrc
       --rcfile	mairixrc
	      Specify an alternative configuration file	to use.	  The  default
	      configuration file is ~/.mairixrc.

       -v, --verbose
	      Make the output more verbose

       -Q, --no-integrity-checks
	      Normally	mairix	will  do  some internal	integrity tests	on the
	      database.	 The -Q	option removes these checks, making mairix run
	      faster,  but  it will be less likely to detect internal problems
	      if any bugs creep	in.

	      The nochecks directive in	the rc file has	the same effect.

       --unlock
	      mairix locks its database	file during any	indexing or  searching
	      operation	 to  prevent  multiple	indexing runs interfering with
	      each other, or an	indexing run  interfering  with	 search	 runs.
	      The  --unlock  option  removes the lockfile before doing the re-
	      quested indexing or searching operation.	This is	 a  convenient
	      way  of  cleaning	 up a stale lockfile if	an earlier run crashed
	      for some reason or was aborted.

   Indexing options
       -p, --purge
	      Cause stale (dead) messages to be	purged from the	database  dur-
	      ing  an indexing run.  (Normally,	stale messages are left	in the
	      database because of the additional cost of compacting  away  the
	      storage that they	take up.)

       -F, --fast-index
	      When processing maildir and MH folders, mairix normally compares
	      the mtime	and size of each message against the values stored  in
	      the  database.   If  they	have changed, the message will be res-
	      canned.  This check requires each	message	file  to  be  stat'ed.
	      For large	numbers	of messages in these folder types, this	can be
	      a	sizeable overhead.

	      This option tells	mairix to assume that when a message currently
	      on-disc  has  a  name  matching  one already in the database, it
	      should assume the	message	is unchanged.

	      A	later indexing run without using this option will fix  up  any
	      rescans that were	missed due to its use.

       --force-hash-key-new-database hash
	      This option should only be used for debugging.
	      If  a new	database is created, hash is used as hash key, instead
	      of a random hash.

   Search options
       -a, --augment
	      Append newly matches messages to the current mfolder instead  of
	      creating the mfolder from	scratch.

       -t, --threads
	      As  well	as  returning  the matched messages, also return every
	      message in the same thread as one	of the real matches.

       -r, --raw-output
	      Instead of creating an mfolder containing	the matched  messages,
	      just show	their paths on stdout.

       -x, --excerpt-output
	      Instead  of creating an mfolder containing the matched messages,
	      display an excerpt from their headers on	stdout.	  The  excerpt
	      shows  To, Cc, From, Subject and Date. With IMAP source folders,
	      this requires downloading	each matched  message  from  the  IMAP
	      server.

       -H, --force-hardlinks
	      Instead  of creating symbolic links, force the use of hardlinks.
	      This helps mailers such as alpine	to realize that	there are  new
	      mails in the search folder.

       -o mfolder
       --mfolder mfolder
	      Specify  a  temporary  alternative  path for the mfolder to use,
	      overriding the mfolder directive in the rc file.

	      mairix will refuse to output search results into any folder that
	      appears  to  be amongst those that are indexed.  This is to pre-
	      vent accidental deletion of emails.

   Search patterns
       t:word
	      Match word in the	To: header.

       c:word
	      Match word in the	Cc: header.

       f:word
	      Match word in the	From: header.

       s:word
	      Match word in the	Subject: header.

       m:word
	      Match word in the	Message-ID: header.

       b:word
	      Match word in the	message	body.

	      Message body is taken to mean any	body part of  type  text/plain
	      or  text/html.  For text/html, text within meta tags is ignored.
	      In particular, the URLs inside <A	HREF="..."> tags are not  cur-
	      rently  indexed.	 Non-text attachments are ignored.  If there's
	      an attachment of type message/rfc822, this  is  parsed  and  the
	      match  is	 performed  on this sub-message	too.  If a hit occurs,
	      the enclosing message is treated as having a hit.

       d:[start-datespec]-[end-datespec]
	      Match messages with Date:	headers	lying in the specific range.

       z:[low-size]-[high-size]
	      Match messages whose size	lies in	the specified range.   If  the
	      low-size	argument is omitted it defaults	to zero.  If the high-
	      size argument is omitted it defaults to infinite size.

	      For example, to match messages between 10kilobytes  and  20kilo-
	      bytes in size, the following search term can be used:

		   mairix z:10k-20k

	      The  suffix 'k' on a number means	multiply by 1024, and the suf-
	      fix 'M' on a number means	multiply by 1024*1024.

       n:word
	      Match word occurring as the name of an attachment	 in  the  mes-
	      sage.   Since  attachment	 names	are  usually long, this	option
	      would usually be used in the substring form.  So

		   mairix n:mairix=

	      would match all messages which have attachments whose names con-
	      tain the substring mairix.

	      The  attachment  name  is	 determined from the name=xxx or file-
	      name=xxx qualifiers on the  Content-Type:	 and  Content-Disposi-
	      tion: headers respectively.

       F:flags
	      Match  messages  with  particular	 flag settings.	 The available
	      flags are	's' meaning seen, 'r' meaning replied, and 'f' meaning
	      flagged.	 The flags are case-insensitive.  A flag letter	may be
	      prefixed by a '-'	to negate its sense.  Thus

		   mairix F:-s d:1w-

	      would match any unread message less than a week old, and

		   mairix F:f-r	d:-1m

	      would match any flagged message older than  a  month  which  you
	      haven't replied to yet.

	      Note  that  the  flag  characters	 and their meanings agree with
	      those used as the	suffix letters on message filenames in maildir
	      folders.

   Searching for a match amongst more than one part of a message
       Multiple	 body parts may	be grouped together, if	a match	in any of them
       is sought.  Common examples follow.

       tc:word
	      Match word in either the To: or Cc: headers (or both).

       bs:word
	      Match word in either the Subject:	header or the message body (or
	      both).

       The  a: search pattern is an abbreviation for tcf:; i.e.	match the word
       in the To:, Cc: or From:	headers.  ("a" stands for  "address"  in  this
       case.)

   Match words
       The word	argument to the	search strings can take	various	forms.

       ~word
	      Match messages not containing the	word.

       word1,word2
	      This matches if both the words are matched in the	specified mes-
	      sage part.

       word1/word2
	      This matches if either of	the words are matched in the specified
	      message part.

       substring=
	      Match any	word containing	substring as a substring

       substring=N
	      Match  any word containing substring, allowing up	to N errors in
	      the match.  For example, if N is 1, a single error  is  allowed,
	      where an error can be

       *      a	missing	letter

       *      an extra letter

       *      a	different letter.

       ^substring=
	      Match any	word containing	substring as a substring, with the re-
	      quirement	that substring occurs at the beginning of the  matched
	      word.

   Precedence matters
       The binding order of the	constructions is:

       1.     Individual  command  line	 arguments  define separate conditions
	      which are	AND-ed together

       2.     Within a single argument,	the letters before  the	 colon	define
	      which  message  parts the	expression applies to.	If there is no
	      colon, the expression applies to all the headers listed  earlier
	      and the body.

       3.     After the	colon, slashes delineate separate disjuncts, which are
	      OR-ed together.

       4.     Each disjunct may	contain	separate conjuncts,  which  are	 sepa-
	      rated by commas.	These conditions are AND-ed together.

       5.     Each  conjunct  may  start with a	tilde to negate	it, and	may be
	      followed by a slash to indicate a	 substring  match,  optionally
	      followed	by  an	integer	to define the maximum number of	errors
	      allowed.

   Date	specification
       This section describes  the  syntax  used  for  specifying  dates  when
       searching using the `d:'	option.

       Dates  are  specified  as  a range.  The	start and end of the range can
       both be specified.  Alternatively, if  the  start  is  omitted,	it  is
       treated	as  being the beginning	of time.  If the end is	omitted, it is
       treated as the current time.

       There are 4 basic formats:

       d:start-end
	      Specify both start and end explicitly

       d:start-
	      Specify start, end is the	current	time

       d:-end Specify end, start is 'a long time ago' (i.e.  early  enough  to
	      include any message).

       d:period
	      Specify  start  and  end implicitly, as the start	and end	of the
	      period given.

       The start and end can be	specified either absolute or relative.	A rel-
       ative  endpoint is given	as a number followed by	a single letter	defin-
       ing the scaling:

       +--------+-------------+-----------+-----------------------+
       |letter	|  short for  |	 example  |  meaning		  |
       +--------+-------------+-----------+-----------------------+
       |d	|  days	      |	 3d	  |  3 days		  |
       |w	|  weeks      |	 2w	  |  2 weeks (14 days)	  |
       |m	|  months     |	 5m	  |  5 months (150 days)  |
       |y	|  years      |	 4y	  |  4 years (4*365 days) |
       +--------+-------------+-----------+-----------------------+

       Months are always treated as 30 days, and years as 365 days,  for  this
       purpose.

       Absolute	times can be specified in many forms.  Some forms have differ-
       ent meanings when they define a start date from that when  they	define
       an  end	date.	Where a	single expression specifies both the start and
       end (i.e. where the argument to d: doesn't contain a `-'), it will usu-
       ally have different interpretations in the two cases.

       In  the	examples  below,  suppose the current date is Sunday May 18th,
       2003 (when I started to write this material.)

       +---------------------+----------------------+-----------------------+---------------------------------+
       |Example		     |	Start date	    |  End date		    |  Notes			      |
       +---------------------+----------------------+-----------------------+---------------------------------+
       |d:20030301-20030425  |	March 1st, 2003	    |  25th April, 2003	    |				      |
       |d:030301-030425	     |	March 1st, 2003	    |  April 25th, 2003	    |  century assumed		      |
       |d:mar1-apr25	     |	March 1st, 2003	    |  April 25th, 2003	    |				      |
       |d:Mar1-Apr25	     |	March 1st, 2003	    |  April 25th, 2003	    |  case insensitive		      |
       |d:MAR1-APR25	     |	March 1st, 2003	    |  April 25th, 2003	    |  case insensitive		      |
       |d:1mar-25apr	     |	March 1st, 2003	    |  April 25th, 2003	    |  date and	month in either	order |
       |d:2002		     |	January	1st, 2002   |  December	31st, 2002  |  whole year		      |
       |d:mar		     |	March 1st, 2003	    |  March 31st, 2003	    |  most recent March	      |
       |d:oct		     |	October	1st, 2002   |  October 31st, 2002   |  most recent October	      |
       |d:21oct-mar	     |	October	21st, 2002  |  March 31st, 2003	    |  start before end		      |
       |d:21apr-mar	     |	April 21st, 2002    |  March 31st, 2003	    |  start before end		      |
       |d:21apr-	     |	April 21st, 2003    |  May 18th, 2003	    |  end omitted		      |
       |d:-21apr	     |	January	1st, 1900   |  April 21st, 2003	    |  start omitted		      |
       |d:6w-2w		     |	April 6th, 2003	    |  May 4th,	2003	    |  both dates relative	      |
       |d:21apr-1w	     |	April 21st, 2003    |  May 11th, 2003	    |  one date	relative	      |
       |d:21apr-2y	     |	April 21st, 2001    |  May 11th, 2001	    |  start before end		      |
       |d:99-11		     |	January	1st, 1999   |  May 11th, 2003	    | 2	digits are a day of the	month |
       |		     |			    |			    | if possible, otherwise a year   |
       |d:99oct-1oct	     |	October	1st, 1999   |  October 1st, 2002    | end before now, single digit is |
       |		     |			    |			    | a	day of the month	      |
       |d:99oct-01oct	     |	October	1st, 1999   |  October 31st, 2001   | 2	 digits	 starting  with	 zero |
       |		     |			    |			    | treated as a year		      |
       |d:oct99-oct1	     |	October	1st, 1999   |  October 1st, 2002    | day and month in either order   |
       |d:oct99-oct01	     |	October	1st, 1999   |  October 31st, 2001   | year and month in	either order  |
       +---------------------+----------------------+-----------------------+---------------------------------+

       The principles in the table work	as follows.

       o      When the expression defines a period of more than	a day (i.e. if
	      a	month or year is specified), the earliest day in the period is
	      taken  when  the	start date is defined, and the last day	in the
	      period if	the end	of the range is	being defined.

       o      The end date is always taken to be  on  or  before  the  current
	      date.

       o      The start	date is	always taken to	be on or before	the end	date.

SETTING	UP THE MATCH FOLDER
       If  the	match folder does not exist when running in search mode, it is
       automatically  created.	 For  'mformat=maildir'	 (the  default),  this
       should be all you need to do.  If you use 'mformat=mh', you may have to
       run some	commands before	your mailer will recognize the	folder.	  e.g.
       for mutt, you could do

	      mkdir -p /home/richard/Mail/mfolder
	      touch /home/richard/Mail/mfolder/.mh_sequences

       which  seems  to	 work.	 Alternatively,	 within	 mutt,	you  could set
       MBOX_TYPE to 'mh' and save a message to '+mfolder' to have mutt set  up
       the structure for you in	advance.

       If  you use Sylpheed, the best way seems	to be to create	the new	folder
       from within Sylpheed before letting mairix write	into it.

EXAMPLES
       Suppose my email	address	is <richard@doesnt.exist>.

       Either of the following will match all messages	newer  than  3	months
       from me with the	word 'chrony' in the subject line:

	      mairix d:3m- f:richard+doesnt+exist s:chrony
	      mairix d:3m- f:richard@doesnt.exist s:chrony

       Suppose	I  don't  mind a few spurious matches on the address, I	want a
       wider date range, and I suspect that some messages I replied  to	 might
       have  had  the  subject	keyword	spelt wrongly (let's allow up to 2 er-
       rors):

	      mairix d:6m- f:richard s:chrony=2

NOTES
       mairix works exclusively	in terms of words.  The	index that's built  in
       indexing	 mode contains a table of which	words occur in which messages.
       Hence, the search capability is based on	finding	messages that  contain
       particular  words.  mairix defines a word as any	string of alphanumeric
       characters + underscore.	 Any whitespace, punctuation, hyphens etc  are
       treated as word boundaries.

       mairix  has  special  handling for the To:, Cc: and From: headers.  Be-
       sides the normal	word scan, these headers are scanned  a	 second	 time,
       where  the characters '@', '-' and '.' are also treated as word charac-
       ters.  This allows most (if not all) email addresses to appear  in  the
       database	 as  single  words.   So  if  you have a mail from wibble@foo-
       bar.zzz,	it will	match on both these searches

	      mairix f:foobar
	      mairix f:wibble@foobar.zzz

       It should be clear by now that the searching cannot  be	used  to  find
       messages	 matching  general  regular  expressions.  This	has never been
       much of a limitation.  Most searches are	for particular	keywords  that
       were  in	the messages, or details of the	recipients, or the approximate
       date.

       It's also worth pointing	out that there is  no  'locality'  information
       stored, so you can't search for messages	that have one words 'close' to
       some other word.	 For every message and every word, there is  a	simple
       yes/no  condition  stored  - whether the	message	contains the word in a
       particular header or in the body.  So far this has proved  to  be  ade-
       quate.  mairix has a similar feel to using an Internet search engine.

FILES
       ~/.mairixrc

AUTHOR
       Copyright (C) 2002-2006 Richard P. Curnow <rc@rc0.org.uk>

SEE ALSO
       mairixrc(5)

BUGS
       We need a plugin	scheme to allow	more types of attachment to be scanned
       and indexed.

				 January 2006			     MAIRIX(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SETTING UP THE MATCH FOLDER | EXAMPLES | NOTES | FILES | AUTHOR | SEE ALSO | BUGS

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