elm(1)

elm(1)

metamail provides external support for other Content-Types, as de®ned in one or more mailcap ®les. The system mailcap ®le is /etc/mail/mailcap. You can de®ne your own default mailcap ®le in $HOME/.mailcap. You can also specify your own list of mailcap ®les by setting the MAILCAPS environment variable. The mailcap ®les are searched in order until an entry is found that matches the Content-Type and any quali®cations.

A minimum mailcap entry consists of a line in the form:

content-type ; command

The command is the command that you would type to view a ®le of the indicated Content-Type, with the string %s replaced by a ®le name. For example, to view body part that was HTML source text and had the Content-Type text/html, you could have the entry

text/html; netscape %s

Similarly, for a GIF image ®le, you could have the entry

image/gif; xv %s

RFC 1521 de®nes a number of Content-Types that elm leaves for metamail to handle:

text/richtext

multipart/alternative

multipart/parallel

multipart/digest

message/partial message/external-body image/jpeg image/gif audio/basic video/mpeg application/octet-stream application/postscript

Check the system mailcap ®le for entries that handle many of them.

EXTERNAL INFLUENCES

Environment Variables

HOME

Your home (login) directory.

EDITOR

If set and nonnull, provides a default value for the alteditor and editor string vari-

 

ables.

LANG

If set and nonnull, determines the language in which messages are displayed. The default

 

is C. See environ(5).

MAILCAPS

If set, de®nes the search path for mailcap ®les used by metamail. The default is

 

$HOME/.mailcap:/etc/mail/mailcap

PAGER

If set and nonnull, provides a default value for the pager string variable.

SHELL

If set and nonnull, provides a default value for the shell string variable.

TMPDIR

If set and nonnull, provides a default value for the tmpdir string variable.

VISUAL

If set and nonnull, provides a default value for the visualeditor string variable.

International Code Set Support

Single- and multibyte character code sets are supported.

EXAMPLES

Message Mode Example

To send a message without loading the main elm mail-processing program, use the simple command form consisting of the name of the program followed by the recipient's login name and optional address. elm prompts for subject and copies, then starts an editor so you can compose the message (user responses are in italic type):

$ elm j_doe

To: doe (John Doe)

HP-UX Release 11i: December 2000

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Section 1−231

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