.TH MPACK 1
.SH NAME
mpack \- pack a file in MIME format
.SH SYNOPSIS
.B mpack
[
.B \-a
]
[
.B \-s
.I subject
]
[
.B \-d
.I descriptionfile
]
[
.B \-m
.I maxsize
]
[
.B \-c
.I content-type
]
.I file
.I "address \&..."
.br
.B mpack
[
.B \-a
]
[
.B \-s
.I subject
]
[
.B \-d
.I descriptionfile
]
[
.B \-m
.I maxsize
]
[
.B \-c
.I content-type
]
.B \-o
.I outputfile
.I file
.br
.B mpack
[
.B \-a
]
[
.B \-s
.I subject
]
[
.B \-d
.I descriptionfile
]
[
.B \-m
.I maxsize
]
[
.B \-c
.I content-type
]
.B \-n
.I newsgroups
.I file
.SH DESCRIPTION
The 
.I mpack
program encodes the 
the named file in one or more MIME messages.
The resulting messages are mailed to one or more recipients,
written to a named file or set of files, or posted to a set of
newsgroups.
.PP
.SH OPTIONS
.TP
.BI \-a
Set the Content-Disposition to attachment.  If \-a is not used
the Content-Disposition is inline.
.TP
.BI \-s " subject"
Set the 
.B Subject
header field to
.IR Subject .
By default,
.B mpack
will prompt for the contents of the subject header.
.TP
.BI \-d " descriptionfile
Include the contents of the file
.I descriptionfile
in an introductory section at the beginning of the first
generated message.
.TP
.BI \-m " maxsize"
Split the message (if necessary) into partial messages, each not
exceeding
.I maxsize
characters.  The default limit is the value of the 
.B SPLITSIZE
environment variable, or no limit if the environment variable
does not exist.
Specifying a 
.I maxsize
of 0 means there is no limit to the size of the generated message.
.TP
.BI \-c " content-type"
Label the included file as being of MIME type
.IR content-type ,
which must be a subtype of 
.BR application ,
.BR audio ,
.BR image ,
or 
.BR video .
If this switch is not given,
.B mpack
examines the file to determine its type.
.TP
.BI \-o " outputfile"
Write the generated message to the file
.IR outputfile .
If the message has to be split, the partial messages will instead be
written to the files
.IR outputfile .01,
.IR outputfile .02,
etc.
.TP
.BI \-n " newsgroups"
Post the generated message(s) to the comma-separated netnews
.IR newsgroups .
.TP
.I file
Encode the named
.IR file .
.TP
.I "address \&..."
Mail the generated messages to the specified addresses.
.SH ENVIRONMENT
.TP
.B TMPDIR
Directory to store temporary files.  Default is /tmp.
.TP
.B SPLITSIZE
Default value of the -m switch.
.SH "REPORTING BUGS"
Send all bug reports to mpack\-bugs@andrew.cmu.edu.