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.TH MU EXTRACT 1 "January 2012" "User Manuals"
.SH NAME
mu extract\- display and save message parts (attachments), and open them with
other tools.
.SH SYNOPSIS
.B mu extract [options] <file>
.B mu extract [options] <file> <pattern>
.SH DESCRIPTION
\fBmu extact\fR is the \fBmu\fR sub-command for extracting MIME-parts (e.g.,
attachments) from mail messages. It works on message files, and does not
require the message to be indexed in the database.
For attachments, the file name used when saving it, is the name of the
attachment in the message. If there is no such name, or when saving
non-attachment MIME-parts, a name is derived from the message-id of the
message.
If you specify a pattern (a case-insensitive regular expression) as the second
argument, all attachments with filenames matching that pattern will be
extracted. The regular expressions are Perl-compatible (as per the
PCRE-library).
Without any options, \fBmu extract\fR simply outputs the list of MIME-parts in
the message.
.SH OPTIONS
.TP
\fB\-a\fR, \fB\-\-save\-attachments\fR
save all MIME-parts that look like attachments.
.TP
\fB\-\-save\-all\fR
save all non-multipart MIME-parts.
.TP
\fB\-\-parts\fR=<parts>
only consider the following numbered parts
(comma-separated list).The numbers for the parts can be seen from running
\fBmu extract\fR without any options but only the message file.
.TP
\fB\-\-target\-dir\fR=<dir>
save the parts in the target directory rather than
the current working directory.
.TP
\fB\-\-overwrite\fR
overwrite existing files with the same name; by default overwriting is not
allowed.
.TP
\fB\-\-play\fR Try to 'play' (open) the attachment with the default
application for the particular file type. On MacOS, this uses the \fBopen\fR
program, on other platforms is uses \fBxdg-open\fR. You can choose a different
program by setting the \fBMU_PLAY_PROGRAM\fR environment variable.
.SH EXAMPLES
To display information about all the MIME-parts in a message file:
.nf
$ mu extract msgfile
.fi
To extract MIME-part 3 and 4 from this message, overwriting existing files
with the same name:
.nf
$ mu extract --parts=3,4 --overwrite msgfile
.fi
To extract all files ending in '.jpg' (case-insensitive):
.nf
$ mu extract msgfile '.*\.jpg'
.fi
To extract an mp3-file, and play it in the the default mp3-playing application.
.nf
$ mu extract --play msgfile 'whoopsididitagain.mp3'
.fi
.SH BUGS
Please report bugs if you find them:
.BR http://code.google.com/p/mu0/issues/list
.SH AUTHOR
Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
.SH "SEE ALSO"
.BR mu(1)
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