On Apache
Under GNU General Public License
2025-02-22 09:32 @3.128.79.124 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
MUNPACK(1) General Commands Manual MUNPACK(1)
NAME
munpack - unpack messages in MIME or split-uuencode format
SYNOPSIS
munpack [ -f ] [ -q ] [ -t ] [ -r character ] [ -C directory ] [ filename ... ]
DESCRIPTION
The munpack program reads each RFC-822 message filename and writes all non-text MIME parts
or split-uuencoded files as files. If no filename argument is given, munpack reads from
standard input.
If the message suggests a file name to use for the imbedded part, that name is cleaned of
potential problem characters and used for the output file. If the suggested filename in-
cludes subdirectories, they will be created as necessary. If the message does not suggest
a file name, the names "part1", "part2", etc are used in sequence.
If the imbedded part was preceded with textual information, that information is also writ-
ten to a file. The file is named the same as the imbedded part, with any filename exten-
sion replaced with ".desc".
OPTIONS
-f Force overwriting of existing files. If a message suggests a file name of an ex-
isting file, the file will be overwritten. Without this flag, munpack appends
".1", ".2", etc to find a nonexistent file.
-q Be quiet. Suppresses messages about saving partial messages and about messages
with no interesting information.
-t Also write the text MIME parts of multipart messages as files. By default, text
parts that do not have a filename parameter do not get unpacked. This option ef-
fectively disables the ".desc" file feature for MIME messages.
-r character
If the suggested filename contains invalid characters, they are replaced with this
character. The default replacement character is "X".
-C directory
Change the current directory to directory before reading any files. This is useful
when invoking munpack from a mail or news reader.
DECODING MIME
To decode a MIME message, first save it to a text file. If possible, save it with all
headers included. Munpack can decode some MIME files when the headers are missing or in-
complete, other files it cannot decode without having the information in the headers. In
general, messages which have a statement at the beginning that they are in MIME format can
be decoded without the headers. Messages which have been split into multiple parts gener-
ally require all headers in order to be reassembled and decoded.
Some LAN-based mail systems and some mail providers (including America Online, as of the
writing of this document) place the mail headers at the bottom of the message, instead of
at the top of the message. If you are having problems decoding a MIME message on such a
system, you need to convert the mail back into the standard format by removing the sys-
tem's nonstandard headers and moving the standard Internet headers at the top of the mes-
sage (separated from the message body with a blank line).
There must be exactly one message per file. Munpack cannot deal with multiple messages in
a single file, to decode things correctly it must know when one message ends and the next
one begins.
To decode a message, run the command:
munpack file
where "file" is the name of the file containing the message. More than one filename may
be specified, munpack will try to decode the message in each file. For more information
on ways to run munpack, see the section "OPTIONS" above.
ENVIRONMENT
TMPDIR Directory to store temporary files. Default is /tmp.
FILES
$TMPDIR/m-prts-$USER/
Directory used to store partial messages awaiting reassembly.
REPORTING BUGS
Send all bug reports to mpack-bugs AT andrew.edu.
MUNPACK(1)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2025-02-22 09:32 @3.128.79.124 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)