doc/en_US.ISO8859-1/articles/mh/article.sgml
Simon L. B. Nielsen 2993ccd69a *.sgml:
- Use trademark entities
 - Add trademark attributions.
 - Always use correct case for trademarks.
 - Don't join trademarks with other words, e.g. using hyphens.

trademark.ent:
 - Add entities for more trademarks / companies.
 - Sort the Sun trademark attribution entity.
2003-09-14 11:29:06 +00:00

778 lines
34 KiB
Text

<!-- $FreeBSD$ -->
<!-- FreeBSD Documentation Project -->
<!DOCTYPE ARTICLE PUBLIC "-//FreeBSD//DTD DocBook V4.1-Based Extension//EN" [
<!ENTITY % freebsd PUBLIC "-//FreeBSD//ENTITIES DocBook Miscellaneous FreeBSD Entities//EN">
%freebsd;
<!ENTITY % trademarks PUBLIC "-//FreeBSD//ENTITIES DocBook Trademark Entities//EN">
%trademarks;
]>
<article>
<articleinfo>
<title>An MH Primer</title>
<authorgroup>
<author>
<firstname>Matt</firstname>
<surname>Midboe</surname>
<affiliation>
<address>
<email>matt@garply.com</email>
</address>
</affiliation>
</author>
</authorgroup>
<pubdate>v1.0, 16 January 1996</pubdate>
<legalnotice id="trademarks" role="trademarks">
&tm-attrib.freebsd;
&tm-attrib.opengroup;
&tm-attrib.general;
</legalnotice>
<abstract>
<para>This document contains an introduction to using MH on
FreeBSD</para>
</abstract>
</articleinfo>
<sect1 id="mhintro">
<title>Introduction</title>
<para>MH started back in 1977 at the RAND Corporation, where the
initial philosophies behind MH were developed. MH is not so much
a monolithic email program but a philosophy about how best to
develop tools for reading email. The MH developers have done a
great job adhering to the <acronym>KISS</acronym> principle: Keep It
Simple Stupid. Rather than have one large program for reading,
sending and handling email they have written specialized
programs for each part of your email life. One might liken MH to
the specialization that one finds in insects and nature. Each
tool in MH does one thing, and does it very well.</para>
<para>Beyond just the various tools that one uses to handle their
email MH has done an excellent job keeping the configuration of
each of these tools consistent and uniform. In fact, if you are
not quite sure how something is supposed to work or what the
arguments for some command are supposed to be, then you can
generally guess and be right. Each MH command is consistent
about how it handles reading the configuration files and how it
takes arguments on the command line. One useful thing to
remember is that you can always add a <option>-help</option> to
the command to have it display the options for that
command.</para>
<para>The first thing that you need to do is to make sure that you
have installed the MH package on your FreeBSD machine. If you
installed from CDROM you should be able to execute the following
to load mh:
<informalexample>
<screen>&prompt.root; <userinput>pkg_add /cdrom/packages/mh-6.8.3.tgz</userinput></screen>
</informalexample>
You will notice that it created a <filename>/usr/local/lib/mh</filename>
directory for you as well as adding several binaries to the
<filename>/usr/local/bin</filename> directory. If you would prefer to
compile it yourself then you can anonymous ftp it from <ulink
URL="ftp://ftp.ics.uci.edu/">ftp.ics.uci.edu</ulink> or <ulink
URL="ftp://louie.udel.edu/">louie.udel.edu</ulink>.</para>
<para>This primer is not a full comprehensive explanation of how
MH works. This is just intended to get you started on the road
to happier, faster mail reading. You should read the manual pages
for the various commands. You might also want to read the <ulink
URL="news:comp.mail.mh">comp.mail.mh</ulink> newsgroup. Also
you can read the <ulink
URL="http://www.faqs.org/faqs/mail/mh-faq/">FAQ for MH</ulink>.
The best resource for MH is <ulink
URL="http://www.ics.uci.edu/~mh/book/">Jerry Peek's MH &amp;
nmh: Email for Users &amp; Programmers</ulink>.</para>
</sect1>
<sect1>
<title>Reading Mail</title>
<para>This section covers how to use <command>inc</command>,
<command>show</command>, <command>scan</command>, <command>next</command>,
<command>prev</command>, <command>rmm</command>, <command>rmf</command>, and
<command>msgchk</command>. One of the best things about MH is the
consistent interface between programs. One thing to keep in
mind when using these commands is how to specify message lists.
In the case of <command>inc</command> this does not really make any
sense but with commands like <command>show</command> it is useful to
know. </para>
<para>A message list can consist of something like <parameter>23
20 16</parameter> which will act on messages 23, 20 and 16. This is
fairly simple but you can do more useful things like
<parameter>23-30</parameter> which will act on all the messages between
23 and 30. You can also specify something like
<parameter>cur:10</parameter> which will act on the current message and
the next 9 messages. The <parameter>cur</parameter>, <parameter>last</parameter>,
and <parameter>first</parameter> messages are special messages that refer
to the current, last or first message in the folder.</para>
<sect2 id="inc">
<title><command>inc</command>, <command>msgchk</command>&mdash;read in your
new email or check it</title>
<para>If you just type in <userinput>inc</userinput> and hit
<keycap>return</keycap> you will be well on your way to getting
started with MH. The first time you run <command>inc</command> it
will setup your account to use all the MH defaults and ask you
about creating a <filename>Mail</filename> directory under your HOME directory. If you have mail waiting to
be downloaded you will see something that looks like:</para>
<informalexample>
<screen> 29 01/15 Doug White Re: Another Failed to boot problem&lt;&lt;On Mon, 15 J
30 01/16 "Jordan K. Hubbar Re: FBSD 2.1&lt;&lt;&gt; Do you want a library instead of
31 01/16 Bruce Evans Re: location of bad144 table&lt;&lt;&gt;&gt; &gt;It would appea
32 01/16 "Jordan K. Hubbar Re: video is up&lt;&lt;&gt; Anyway, mrouted won't run, ev
33 01/16 Michael Smith Re: FBSD 2.1&lt;&lt;Nate Williams stands accused of sa</screen>
</informalexample>
<para>This is the same thing you will see from a
<command>scan</command> (see <xref linkend="scan">). If you just run
<command>inc</command> with no arguments it will look on your
computer for email that is supposed to be coming to
you.</para>
<para>A lot of people like to use POP for grabbing their email.
MH can do POP to grab your email. You will need to give
<command>inc</command> a few command line arguments.</para>
<informalexample>
<screen>&prompt.user; <userinput>inc -host mail.pop.org -user <replaceable>username</replaceable> -norpop</userinput></screen>
</informalexample>
<para>That tells <command>inc</command> to go to
<parameter>mail.pop.org</parameter> to download your email, and that
your username on their system is <replaceable>username</replaceable>. The
<option>-norpop</option> option tells <command>inc</command> to use
plain POP3 for downloading your email. MH has support for a
few different dialects of POP. More than likely you will never
ever need to use them though. While you can do more complex
things with <command>inc</command> such as audit files and scan format files this
will get you going.</para>
<para>The <command>msgchk</command> command is used to get information
on whether or not you have new email. <command>msgchk</command> takes
the same <option>-host</option> and <option>-user</option>
options that <command>inc</command> takes.</para>
</sect2>
<sect2 id="show">
<title><command>show</command>, <command>next</command> and
<command>prev</command>&mdash;displaying and moving through
email</title>
<para><command>show</command> is to show a letter in your current
folder. Like <command>inc</command>, <command>show</command> is a fairly
straightforward command. If you just type <userinput>show</userinput>
and hit <keycap>return</keycap> then it displays the current
message. You can also give specific message numbers to
show:</para>
<informalexample>
<screen>&prompt.user; <userinput>show 32 45 56</userinput></screen>
</informalexample>
<para>This would display message numbers 32, 45 and 56 right
after each other. Unless you change the default behavior
<command>show</command> basically just does a <command>more</command> on the
email message.</para>
<para><command>next</command> is used to move onto the next message and
<command>prev</command> will go to the previous message. Both
commands have an implied <command>show</command> command so that when
you go to the next message it automatically displays
it.</para>
</sect2>
<sect2 id="scan">
<title><command>scan</command>&mdash;shows you a scan of your
messages</title>
<para><command>scan</command> will display a brief listing of the
messages in your current folder. This is an example of what
the <command>scan</command> command will give you.</para>
<informalexample>
<screen> 30+ 01/16 Jordan K. Hubbar Re: FBSD 2.1&lt;&lt;&gt; Do you want a library instead of
31 01/16 Bruce Evans Re: location of bad144 table&lt;&lt;&gt;&gt; &gt;It would appea
32 01/16 Jordan K. Hubbar Re: video is up&lt;&lt;&gt; Anyway, mrouted won't run, ev
33 01/16 Michael Smith Re: FBSD 2.1&lt;&lt;Nate Williams stands accused of sa</screen>
</informalexample>
<para>Like just about everything in MH this display is very
configurable. This is the typical default display. It gives
you the message number, the date on the email, the sender, the
subject line, and a sentence fragment from the very beginning
of the email if it can fit it. The <literal>+</literal> means that
message is the current message, so if you do a
<command>show</command> it will display that message.</para>
<para>One useful option for scan is the
<option>-reverse</option> option. This will list your messages
with the highest message number first and lowest message
number last. Another useful option with <command>scan</command> is to
have it read from a file. If you want to scan your incoming
mailbox on FreeBSD without having to <command>inc</command> it you
can do <command>scan -file
/var/mail/<replaceable>username</replaceable></command>. This can be used
with any file that is in the <database>mbox</database> format.</para>
</sect2>
<sect2 id="rmm">
<title><command>rmm</command> and <command>rmf</command>&mdash;remove the
current message or folder</title>
<para><command>rmm</command> is used to remove a mail message. The
default is typically to not actually remove the message but to
rename the file to one that is ignored by the MH commands. You
will periodically need to go through and physically delete the
<quote>removed</quote> messages.</para>
<para>The <command>rmf</command> command is used to remove folders.
This does not just rename the files but actually removes the
from the hard drive so you should be careful when you use this
command.</para>
</sect2>
<sect2 id="samplereading">
<title>A typical session of reading with MH</title>
<para>The first thing that you will want to do is
<command>inc</command> your new mail. So at a shell prompt just type
in <command>inc</command> and hit <keycap>return</keycap>.</para>
<informalexample>
<screen>&prompt.user; <userinput>inc</userinput>
Incorporating new mail into inbox...
36+ 01/19 Stephen L. Lange Request...&lt;&lt;Please remove me as contact for pind
37 01/19 Matt Thomas Re: kern/950: Two PCI bridge chips fail (multipl
38 01/19 Amancio Hasty Jr Re: FreeBSD and VAT&lt;&lt;&gt;&gt;&gt; Bill Fenner said: &gt; In
&prompt.user;</screen>
</informalexample>
<para>This shows you the new email that has been added to your
mailbox. So the next thing to do is <command>show</command> the email
and move around.</para>
<informalexample>
<screen>&prompt.user; <userinput>show</userinput>
Received: by sashimi.wwa.com (Smail3.1.29.1 #2)
id m0tdMZ2-001W2UC; Fri, 19 Jan 96 13:33 CST
Date: Fri, 19 Jan 1996 13:33:31 -0600 (CST)
From: "Stephen L. Lange" &lt;stvlange@wwa.com&gt;
To: matt@garply.com
Subject: Request...
Message-Id: &lt;Pine.BSD.3.91.960119133211.824A-100000@sashimi.wwa.com&gt;
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Please remove me as contact for pindat.com
&prompt.user; <userinput>rmm</userinput>
&prompt.user; <userinput>next</userinput>
Received: from localhost (localhost [127.0.0.1]) by whydos.lkg.dec.com (8.6.11/8
.6.9) with SMTP id RAA24416; Fri, 19 Jan 1996 17:56:48 GMT
Message-Id: &lt;199601191756.RAA24416@whydos.lkg.dec.com&gt;
X-Authentication-Warning: whydos.lkg.dec.com: Host localhost didn't use HELO pro
tocol
To: hsu@clinet.fi
Cc: hackers@FreeBSD.org
Subject: Re: kern/950: Two PCI bridge chips fail (multiple multiport ethernet
boards)
In-Reply-To: Your message of "Fri, 19 Jan 1996 00:18:36 +0100."
&lt;199601182318.AA11772@Sysiphos&gt;
X-Mailer: exmh version 1.5omega 10/6/94
Date: Fri, 19 Jan 1996 17:56:40 +0000
From: Matt Thomas &lt;matt@lkg.dec.com&gt;
Sender: owner-hackers@FreeBSD.org
Precedence: bulk
This is due to a typo in pcireg.h (to
which I am probably the guilty party).</screen>
</informalexample>
<para>The <command>rmm</command> removed the current message and the
<command>next</command> command moved me on to the next message. Now
if I wanted to look at ten most recent messages so I could
read one of them here is what I would do:</para>
<informalexample>
<screen>&prompt.user; <userinput>scan last:10</userinput>
26 01/16 maddy Re: Testing some stuff&lt;&lt;yeah, well, Trinity has
27 01/17 Automatic digest NET-HAPPENINGS Digest - 16 Jan 1996 to 17 Jan 19
28 01/17 Evans A Criswell Re: Hey dude&lt;&lt;&gt;From matt@tempest.garply.com Tue
29 01/16 Karl Heuer need configure/make volunteers&lt;&lt;The FSF is looki
30 01/18 Paul Stephanouk Re: [alt.religion.scientology] Raw Meat (humor)&lt;
31 01/18 Bill Lenherr Re: Linux NIS Solaris&lt;&lt;--- On Thu, 18 Jan 1996 1
34 01/19 John Fieber Re: Stuff for the email section?&lt;&lt;On Fri, 19 Jan
35 01/19 support@foo.garpl [garply.com #1138] parlor&lt;&lt;Hello. This is the Ne
37+ 01/19 Matt Thomas Re: kern/950: Two PCI bridge chips fail (multipl
38 01/19 Amancio Hasty Jr Re: FreeBSD and VAT&lt;&lt;&gt;&gt;&gt; Bill Fenner said: &gt; In
&prompt.user;</screen>
</informalexample>
<para>Then if I wanted to read message number 27 I would do a
<userinput>show 27</userinput> and it would be displayed. As you can
probably tell from this sample session MH is pretty easy to
use and looking through emails and displaying them is fairly
intuitive and easy.</para>
</sect2>
</sect1>
<sect1>
<title>Folders and Mail Searching</title>
<para>Anybody who gets lots of email definitely wants to be able
to prioritize, stamp, brief, de-brief, and number their emails
in a variety of different ways. MH can do this better than just
about anything. One thing that we have not really talked about is
the concept of folders. You have undoubtedly come across the
folders concept using other email programs. MH has folders too.
MH can even do sub-folders of a folder. One thing you should
keep in mind with MH is that when you ran <command>inc</command> for
the first time and it asked you if it could create a
<filename>Mail</filename> directory it began storing everything in that
directory. If you look at that directory you will find a
directory named <filename>inbox</filename>. The <filename>inbox</filename>
directory houses all of your incoming mail that has not been
thrown anywhere else.</para>
<para>Whenever you create a new folder a new directory is going to
be created underneath your MH <filename>Mail</filename> directory, and
messages in that folder are going to be stored in that
directory. When a new email message comes, it is thrown
into your <filename>inbox</filename> directory with a file name that is
equivalent to the message number. So even if you did not have
any of the MH tools to read your email you could still use
standard &unix; commands to munge around in those directories and
just more your files. It is this simplicity that really gives you
a lot of power with what you can do with your email.</para>
<para>Just as you can use message lists like <parameter>23 16
42</parameter> with most MH commands there is a folder option you can
specify with just about every MH command. If you do a
<command>scan +freebsd</command> it will scan your <filename>freebsd</filename>
folder, and your current folder will be changed to
<filename>freebsd</filename>. If you do a <command>show +freebsd 23 16
42</command>, <command>show</command> is going to switch to your
<filename>freebsd</filename> folder and display messages 23, 16 and 42.
So remember that <option>+<replaceable>folder</replaceable></option> syntax. You
will need to make sure you use it to make commands process
different folders. Remember you default folder for mail is
<filename>inbox</filename> so doing a <command>folder +inbox</command> should
always get you back to your mail. Of course, in MH's infinite
flexibility this can be changed but most places have probably
left it as <command>inbox</command>.</para>
<sect2>
<title><command>pick</command>&mdash;search email that matches certain
criteria</title>
<para><command>pick</command> is one of the more complex commands in
the MH system. So you might want to read the
<citerefentry><refentrytitle>pick</refentrytitle><manvolnum>1</manvolnum></citerefentry> man
page for a more thorough understanding. At its simplest level
you can do something like</para>
<informalexample>
<screen>&prompt.user; <userinput>pick -search pci</userinput>
15
42
55
56
57</screen>
</informalexample>
<para>This will tell <command>pick</command> to look through every
single line in every message in your current folder and tell
you which message numbers it found the word <literal>pci</literal>
in. You can then <command>show</command> those messages and read them
if you wish or <command>rmm</command> them. You would have to specify
something like <command>show 15 42 55-57</command> to display them
though. A slightly more useful thing to do is this:</para>
<informalexample>
<screen>&prompt.user; <userinput>pick -search pci -seq pick</userinput>
5 hits
&prompt.user; <userinput>show pick</userinput></screen>
</informalexample>
<para>This will show you the same messages you just did not have
to work as hard to do it. The <option>-seq</option> option is
really an abbreviation of <option>-sequence</option> and
<command>pick</command> is just a sequence which contains the message
numbers that matched. You can use sequences with just about
any MH command. So you could have done an <command>rmm pick</command>
and all those messages would be removed instead. You sequence
can be named anything. If you run pick again it will overwrite
the old sequence if you use the same name.</para>
<para>Doing a <command>pick -search</command> can be a bit more
time consuming than just searching for message from someone,
or to someone. So <command>pick</command> allows you to use the
following predefined search criteria:</para>
<variablelist>
<varlistentry>
<term><option>-to</option></term>
<listitem>
<para>search based upon who the message is to</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-cc</option></term>
<listitem>
<para>search based on who is in the <literal>Cc:</literal> list</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-from</option></term>
<listitem>
<para>search for who sent the message</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-subject</option></term>
<listitem>
<para>search for emails with this subject</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-date</option></term>
<listitem>
<para>find emails with a matching date</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--<replaceable>component</replaceable></option></term>
<listitem>
<para>search for any other component in the header. (i.e.
<option>--reply-to</option> to find all emails with a certain
reply-to in the header)</para>
</listitem>
</varlistentry>
</variablelist>
<para>This allows you to do things like
<informalexample>
<screen>&prompt.user; <userinput>pick -to freebsd-hackers@FreeBSD.org -seq hackers</userinput></screen>
</informalexample>
to get a list of all the email send to the FreeBSD hackers
mailing list. <command>pick</command> also allows you to group these
criteria in different ways using the following options:</para>
<itemizedlist>
<listitem>
<para>&hellip; <option>-and</option> &hellip;</para>
</listitem>
<listitem>
<para>&hellip; <option>-or</option> &hellip;</para>
</listitem>
<listitem>
<para><option>-not</option> &hellip;</para>
</listitem>
<listitem>
<para><option>-lbrace</option> &hellip;
<option>-rbrace</option></para>
</listitem>
</itemizedlist>
<para>These commands allow you to do things like</para>
<informalexample>
<screen>&prompt.user; <userinput>pick -to freebsd-hackers -or -cc freebsd-hackers</userinput></screen>
</informalexample>
<para>That will grab all the email in your inbox that was sent
to freebsd-hackers or cc'd to that list. The brace options
allow you to group search criteria together. This is sometimes
very necessary as in the following example</para>
<informalexample>
<screen>&prompt.user; <userinput>pick -lbrace -to freebsd-hackers -and
-not -cc freebsd-questions -rbrace -and -subject pci</userinput></screen>
</informalexample>
<para>Basically this says <quote>pick (to freebsd-hackers and
not cc'd on freebsd-questions) and the subject is
pci</quote>. It should look through your folder and find
all messages sent to the freebsd-hackers list that are not cc'd
to the freebsd-questions list and contain <quote>pci</quote> in
the subject line. Ordinarily you might have to worry about
something called operator precedence. Remember in math how you
evaluate from left to right and you do multiplication and
division first and addition and subtraction second? MH has the
same type of rules for <command>pick</command>. It is fairly complex
so you might want to study the manual page. This document is just
to help you get acquainted with MH.</para>
</sect2>
<sect2>
<title><command>folder</command>, <command>folders</command>,
<command>refile</command>&mdash;three useful programs for folder
maintenance</title>
<para>There are three programs which are primarily just for
manipulating your folders. The <command>folder</command> program is
used to switch between folders, pack them, and list them. At
its simplest level you can do a <command>folder
+<replaceable>newfolder</replaceable></command> and you will be switched into
<replaceable>newfolder</replaceable>. From there on out all your MH
commands like <command>comp</command>, <command>repl</command>,
<command>scan</command>, and <command>show</command> will act on that
<command>newfolder</command> folder.</para>
<para>Sometimes when you are reading and deleting messages you
will develop <quote>holes</quote> in your folders. If you do a
<command>scan</command> you might just see messages 34, 35, 36, 43,
55, 56, 57, 80. If you do a <command>folder -pack</command>
this will renumber all your messages so that there are no
holes. It does not actually delete any messages though. So you
may need to periodically go through and physically delete
<command>rmm</command>'d messages.</para>
<para>If you need statistics on your folders you can do a
<command>folders</command> or <command>folder -all</command> to list
all your folders, how many messages they have, what the
current message is in each one and so on. This line of stats
it displays for all your folders is the same one you get when
you change to a folder with <command>folder +foldername</command>. A
<command>folders</command> command looks like this:</para>
<informalexample>
<screen> Folder # of messages ( range ); cur msg (other files)
announce has 1 message ( 1- 1).
drafts has no messages.
f-hackers has 43 messages ( 1- 43).
f-questions has 16 messages ( 1- 16).
inbox+ has 35 messages ( 1- 38); cur= 37.
lists has 8 messages ( 1- 8).
netfuture has 1 message ( 1- 1).
out has 31 messages ( 1- 31).
personal has 6 messages ( 1- 6).
todo has 58 messages ( 1- 58); cur= 1.
TOTAL= 199 messages in 13 folders.</screen>
</informalexample>
<para>The <command>refile</command> command is what you use to move
messages between folders. When you do something like
<command>refile 23 +netfuture</command> message number 23 is moved
into the <filename>netfuture</filename> folder. You could also do
something like <command>refile 23 +netfuture/latest</command> which
would put message number 23 in a subfolder called
<filename>latest</filename> under the <filename>netfuture</filename> folder.
If you want to keep a message in the current folder and link
it you can do a <command>refile -link 23 +netfuture</command>
which would keep 23 in your current <filename>inbox</filename> but
also list in your <filename>netfuture</filename> folder. You are
probably beginning to realize some of the really powerful
things you can do with MH.</para>
</sect2>
</sect1>
<sect1>
<title>Sending Mail</title>
<para>Email is a two way street for most people so you want to be
able to send something back. The way MH handles sending mail can
be a bit difficult to follow at first, but it allows for
incredible flexibility. The first thing MH does is to copy a
components file into your outgoing email. A components file is
basically a skeleton email letter with stuff like the To: and
Subject: headers already in it. You are then sent into your
editor where you fill in the header information and then type
the body of your message below the dashed lines in the message.
When you leave the editor, the <command>whatnow</command> program is run. When you are at the
<prompt>What now?</prompt> prompt you can tell it to
<command>send</command>, <command>list</command>, <command>edit</command>,
<command>push</command>, and <command>quit</command>. Most
of these commands are self-explanatory. So the message sending
process involves copying a component file, editing your email,
and then telling the <command>whatnow</command> program what to do with
your email.</para>
<sect2>
<title><command>comp</command>, <command>forw</command>,
<command>reply</command>&mdash;compose, forward or reply to a message
to someone</title>
<para>The <command>comp</command> program has a few useful command line
options. The most important one to know right now is the
<option>-editor</option> option. When MH is installed the
default editor is usually a program called
<command>prompter</command> which comes with MH. It is not a very
exciting editor and basically just gets the job done. So when
you go to compose a message to someone you might want to use
<command>comp -editor /usr/bin/vi</command> or <command>comp -editor
/usr/local/bin/pico</command> instead. Once you have run
<emphasis>comp</emphasis> you are in your editor and you see
something that looks like this:</para>
<informalexample>
<screen>To:
cc:
Subject:
--------</screen>
</informalexample>
<para>You need to put the person you are sending the mail to
after the <literal>To:</literal> line. It works the same way for the
other headers also, so you would need to put your subject
after the <literal>Subject:</literal> line. Then you would just put
the body of your message after the dashed lines. It may seem a
bit simplistic since a lot of email programs have special
requesters that ask you for this information but there really
is no point to that. Plus this really gives you excellent
flexibility.</para>
<informalexample>
<screen>To:<userinput>freebsd-rave@FreeBSD.org</userinput>
cc:
Subject:<userinput>And on the 8th day God created the FreeBSD core team</userinput>
--------
<userinput>Wow this is an amazing operating system. Thanks!</userinput></screen>
</informalexample>
<para>You can now save this message and exit your editor. You
will see the <prompt>What now?</prompt> prompt and you can type in
<userinput>send</userinput> or <userinput>s</userinput> and hit
<keycap>return</keycap>. Then the FreeBSD core team will receive
their just rewards. As I mentioned earlier, you can also use
other commands at the <prompt>What now?</prompt> prompt.
For example you can use <command>quit</command>, if you do not want
to send the message.</para>
<para>The <command>forw</command> command is stunningly similar. The
big difference being that the message you are forwarding is
automatically included in the outgoing message. When you run
<command>forw</command> it will forward your current message. You can
always tell it to forward something else by doing something
like <command>forw 23</command> and then message number 23 will be
put in your outgoing message instead of the current message.
Beyond those small differences <command>forw</command> functions
exactly the same as <command>comp</command>. You go through the exact
same message sending process.</para>
<para>The <command>repl</command> command will reply to the
current message, unless you give it a different message to
reply to. <command>repl</command> will do its best to go ahead and
fill in some of the email headers already. So you will notice
that the <literal>To:</literal> header already has the address of the
recipient in there. Also the <literal>Subject:</literal> line will
already be filled in. You then go about the normal message
composition process and you are done. One useful command line
option to know here is the <option>-cc</option> option. You
can use <parameter>all</parameter>, <parameter>to</parameter>, <parameter>cc</parameter>,
<parameter>me</parameter> after the <option>-cc</option> option to have
<command>repl</command> automatically add the various addresses to
the <literal>Cc:</literal> list in the message. You have probably noticed that the
original message is not included. This is because most MH
setups are configured to do this from the start.</para>
</sect2>
<sect2>
<title><filename>components</filename>, and
<filename>replcomps</filename>&mdash;components files for
<command>comp</command> and <command>repl</command></title>
<para>The <filename>components</filename> file is usually in
<filename>/usr/local/lib/mh</filename>. You can copy that file
into your MH Mail directory and edit to contain what you want
it to contain. It is a fairly basic file. You have various
email headers at the top, a dashed line and then nothing. The
<command>comp</command> command just copies this
<filename>components</filename> file and then edits it. You can add
any kind of valid RFC822 header you want. For instance you
could have something like this in your <filename>components</filename>
file:</para>
<informalexample>
<screen>To:
Fcc: out
Subject:
X-Mailer: MH 6.8.3
X-Home-Page: http://www.FreeBSD.org/
-------</screen>
</informalexample>
<para>MH would then copy this components file and throw you into
your editor. The <filename>components</filename> file is fairly
simple. If you wanted to have a signature on those messages
you would just put your signature in that
<filename>components</filename> file.</para>
<para>The <filename>replcomps</filename> file is a bit more complex. The
default <filename>replcomps</filename> looks like this:</para>
<informalexample>
<screen>%(lit)%(formataddr %&lt;{reply-to}%?{from}%?{sender}%?{return-path}%&gt;)\
%&lt;(nonnull)%(void(width))%(putaddr To: )\n%&gt;\
%(lit)%(formataddr{to})%(formataddr{cc})%(formataddr(me))\
%&lt;(nonnull)%(void(width))%(putaddr cc: )\n%&gt;\
%&lt;{fcc}Fcc: %{fcc}\n%&gt;\
%&lt;{subject}Subject: Re: %{subject}\n%&gt;\
%&lt;{date}In-reply-to: Your message of "\
%&lt;(nodate{date})%{date}%|%(pretty{date})%&gt;."%&lt;{message-id}
%{message-id}%&gt;\n%&gt;\
--------</screen>
</informalexample>
<para>It is in the same basic format as the
<filename>components</filename> file but it contains quite a few extra
formatting codes. The <literal>%(lit)</literal> command makes room
for the address. The <literal>%(formataddr</literal> is a function
that returns a proper email address. The next part is
<literal>%&lt;</literal> which means if and the
<literal>{reply-to}</literal> means the reply-to field in the
original message. So that might be translated this way:</para>
<informalexample>
<screen>%&lt;<emphasis remap=bf>if</emphasis> {reply-to} <emphasis remap=bf>the original message has a reply-to</emphasis>
then give that to formataddr, %? <emphasis remap=bf>else</emphasis> {from} <emphasis remap=bf>take the
from address</emphasis>, %? <emphasis remap=bf>else</emphasis> {sender} <emphasis remap=bf>take the sender address</emphasis>, %?
<emphasis remap=bf>else</emphasis> {return-path} <emphasis remap=bf>take the return-path from the original
message</emphasis>, %&gt; <emphasis remap=bf>endif</emphasis>.</screen>
</informalexample>
<para>As you can tell MH formatting can get rather involved. You
can probably decipher what most of the other functions and
variables mean. All of the information on writing these format
strings is in the MH-Format manual page. The really nice thing is
that once you have built your customized
<filename>replcomps</filename> file you will not need to touch it again.
No other email program really gives you the power and
flexibility that MH gives you.</para>
</sect2>
</sect1>
</article>