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+.\" Copyright (c) 1980, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)mail3.nr	8.1 (Berkeley) 6/8/93
+.\"
+.sh 1 "Maintaining folders"
+.pp
+.i Mail
+includes a simple facility for maintaining groups of messages together
+in folders.  This section describes this facility.
+.pp
+To use the folder facility, you must tell
+.i Mail
+where you wish to keep your folders.  Each folder of messages will
+be a single file.  For convenience, all of your folders are kept in
+a single directory of your choosing.  To tell
+.i Mail
+where your folder directory is, put a line of the form
+.(l
+set folder=letters
+.)l
+in your
+.i .mailrc
+file.  If, as in the example above, your folder directory does not
+begin with a `/,'
+.i Mail
+will assume that your folder directory is to be found starting from
+your home directory.  Thus, if your home directory is
+.b /home/person
+the above example told
+.i Mail
+to find your folder directory in
+.b /home/person/letters .
+.pp
+Anywhere a file name is expected, you can use a folder name, preceded
+with `+.'  For example, to put a message into a folder with the
+.b save
+command, you can use:
+.(l
+save +classwork
+.)l
+to save the current message in the
+.i classwork
+folder.  If the
+.i classwork
+folder does not yet exist, it will be created.  Note that messages
+which are saved with the
+.b save
+command are automatically removed from your system mailbox.
+.pp
+In order to make a copy of a message in a folder without causing
+that message to be removed from your system mailbox, use the
+.b copy
+command, which is identical in all other respects to the
+.b save
+command.  For example,
+.(l
+copy +classwork
+.)l
+copies the current message into the
+.i classwork
+folder and leaves a copy in your system mailbox.
+.pp
+The
+.b folder
+command
+can be used to direct
+.i Mail
+to the contents of a different folder.
+For example,
+.(l
+folder +classwork
+.)l
+directs
+.i Mail
+to read the contents of the
+.i classwork
+folder.  All of the commands that you can use on your system
+mailbox are also applicable to folders, including
+.b type ,
+.b delete ,
+and
+.b reply .
+To inquire which folder you are currently editing, use simply:
+.(l
+folder
+.)l
+.pp
+To list your current set of folders, use the
+.b folders
+command.
+.pp
+To start
+.i Mail
+reading one of your folders, you can use the
+.b \-f
+option described in section 2.  For example:
+.(l
+% Mail \-f +classwork
+.)l
+will cause
+.i Mail
+to read your
+.i classwork
+folder without looking at your system mailbox.