mail2.nr

早期freebsd实现

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.\"	@(#)mail2.nr	8.1 (Berkeley) 6/8/93
.\"
.bp
.sh 1 "Common usage"
.pp
The
.i Mail
command has two distinct usages, according to whether one
wants to send or receive mail.  Sending mail is simple:  to send a
message to a user whose login name is, say,
\*(lqroot,\*(rq
use the shell
command:
.(l
% Mail root
.)l
then type your message.  When you reach the end of the message, type
an EOT (control\-d) at the beginning of a line, which will cause
.i Mail
to echo \*(lqEOT\*(rq and return you to the Shell.  When the user you sent mail
to next logs in, he will receive the message:
.(l
You have mail.
.)l
to alert him to the existence of your message.
.pp
If, while you are composing the message
you decide that you do not wish to send it after all, you can
abort the letter with a \s-2RUBOUT\s0.  Typing a single \s-2RUBOUT\s0
causes
.i Mail
to print
.(l
(Interrupt -- one more to kill letter)
.)l
Typing a second
\s-2RUBOUT\s0 causes
.i Mail
to save your partial letter on the file
.q dead.letter
in your home directory and abort the letter.
Once you have
sent mail to someone, there is no way to undo the act, so be
careful.
.pp
The message your recipient reads will consist of the message you
typed, preceded by a line telling who sent the message (your login name)
and the date and time it
was sent.
.pp
If you want to send the same message to several other people, you can list
their login names on the command line.
Thus,
.(l
% Mail sam bob john
Tuition fees are due next Friday.  Don't forget!!
<Control\-d>
EOT
%
.)l
will send the reminder to sam, bob, and john.
.pp
If, when you log in, you see the message,
.(l
You have mail.
.)l
you can read the mail by typing simply:
.(l
% Mail
.)l
.i Mail
will respond by typing its version number and date and then listing
the messages you have waiting.  Then it will type a prompt and await
your command.  The messages are assigned numbers starting with 1 \*- you
refer to the messages with these numbers.
.i Mail
keeps track of which messages are
.i new
(have been sent since you last read your mail) and
.i read
(have been read by you).  New messages have an
.b N
next to them in the header listing and old, but unread messages have
a
.b U
next to them.
.i Mail
keeps track of new/old and read/unread messages by putting a
header field called
.q Status
into your messages.
.pp
To look at a specific message, use the
.b type
command, which may be abbreviated to simply
.b t .
For example, if you had the following messages:
.(l
N 1 root     Wed Sep 21 09:21  "Tuition fees"
N 2 sam      Tue Sep 20 22:55
.)l
you could examine the first message by giving the command:
.(l
type 1
.)l
which might cause
.i Mail
to respond with, for example:
.(l
Message  1:
From root  Wed Sep 21 09:21:45 1978
Subject: Tuition fees
Status: R

Tuition fees are due next Wednesday.  Don't forget!!

.)l
Many
.i Mail
commands that operate on messages take a message number as an
argument like the
.b type
command.  For these commands, there is a notion of a current
message.  When you enter the
.i Mail
program, the current message is initially the first one.  Thus,
you can often omit the message number and use, for example,
.(l
t
.)l
to type the current message.  As a further shorthand, you can type a message
by simply giving its message number.  Hence,
.(l
1
.)l
would type the first message.
.pp
Frequently, it is useful to read the messages in your mailbox in order,
one after another.  You can read the next message in
.i Mail
by simply typing a newline.  As a special case, you can type a newline
as your first command to
.i Mail
to type the first message.
.pp
If, after typing a message, you wish to immediately send a reply,
you can do so with the
.b reply
command.
.b Reply ,
like
.b type ,
takes a message number as an argument.
.i Mail
then begins a message addressed to the user who sent you the message.
You may then type in your letter in reply, followed by a <control-d>
at the beginning of a line, as before.
.i Mail
will type EOT, then type the ampersand prompt to indicate its readiness
to accept another command.  In our example, if, after typing the
first message, you wished to reply to it, you might give the command:
.(l
reply
.)l
.i Mail
responds by typing:
.(l
To: root
Subject: Re: Tuition fees
.)l
and waiting for you to enter your letter.
You are now in the message collection mode described at the beginning
of this section and
.i Mail
will gather up your message up to a control\-d.
Note that it copies the subject
header from the original message.  This is useful in that correspondence
about a particular matter will tend to retain the same subject heading,
making it easy to recognize.  If there are other header fields in
the message, the information found will also be used.
For example, if the letter had a
.q "To:"
header listing several recipients,
.i Mail
would arrange to send your replay to the same people as well.
Similarly, if the original message contained a
.q "Cc:"
(carbon copies to) field,
.i Mail
would send your reply to
.i those
users, too.
.i Mail
is careful, though, not too send the message to
.i you ,
even if you appear in the
.q "To:"
or
.q "Cc:"
field, unless you ask to be included explicitly.  See section 4 for more
details.
.pp
After typing in your letter, the dialog with
.i Mail
might look like the following:
.(l
reply
To: root
Subject: Tuition fees

Thanks for the reminder
EOT
&
.)l
.pp
The
.b reply
command is especially useful for sustaining extended conversations
over the message system, with other
.q listening
users receiving copies of the conversation.  The
.b reply
command can be abbreviated to
.b r .
.pp
Sometimes you will receive a message that has been sent to
several people and wish to reply
.i only
to the person who sent it.
.b Reply
with a capital
.b R
replies to a message, but sends a copy to the sender only.
.pp
If you wish, while reading your mail, to send a message to someone,
but not as a reply to one of your messages, you can send the message
directly with the
.b mail
command, which takes as arguments the names of the recipients you wish
to send to.  For example, to send a message to
.q frank,
you would do:
.(l
mail frank
This is to confirm our meeting next Friday at 4.
EOT
&
.)l
The
.b mail
command can be abbreviated to
.b m .
.pp
Normally, each message you receive is saved in the file
.i mbox
in your login directory at the time you leave
.i Mail .
Often,
however, you will not want to save a particular message you
have received because it is only of passing interest.  To avoid
saving a message in
.i mbox
you can delete it using the
.b delete
command.  In our example,
.(l
delete 1
.)l
will prevent
.i Mail
from saving message 1 (from root) in
.i mbox .
In addition to not saving deleted messages,
.i Mail
will not let
you type them, either.  The effect is to make the message disappear
altogether, along with its number.  The
.b delete