E-mail attachments constitute a surprisingly large and even unwieldy subject. The first clarification is to distinguish emission of e-mail with attachments, from its reception and interpretation. The Wiki page on the mime package focuses mostly on the latter.
The variety of ways to transmit e-mail attachments with Tcl is large. CL keeps a few models in [L1 ].
One of the reasons for active interest in the range of possibilities is typical for Tcl: one wants to compensate for various constraints. mime had severe flaws before tcllib 0.8 (and still has other errors--more on that, later) and is essentially unreliable with Tcl before 8.2. CL frequently needs to set up quick e-mail operations on hosts equipped with old interpreters; 7.6, for example, in the case of a client met in January 2002. For older interpreters, it's best to enlist outside help, as with
set tmpfile /tmp/abc[pid]
set subject "This is the subject line."
exec /usr/local/bin/mpack -s $subject -o $tmpfile $standard_name
set To {The distribution list}
set recipients "[email protected] [email protected] [email protected]"
set recipients [join $recipients ,]
exec $sendmail -t << \
"To: ($To)
Bcc: $recipients
[exec cat $tmpfile]"
Mutt: Someone had contributed a mutt example that was not correct (mutt tossed back a "bad usage" message). CL's taken the liberty of simplifying the example from four lines to one, in the process of correcting it:
exec mutt -s $subject -a $attachment $to << $body
Other useful external Unix utilities include pine and uuencode [give examples].
FP: Another useful Unix utility for this job is UUDeview [L2 ]
uuenview -b -m [email protected] -s "The Subject" filename