I've searched far and wide (including forums - so please don't tell me to look there) ...and I have a presumably simple request...

how do I specify multiple recipients to send mail to usnig the mail command.

I've got this

(cat mail_message ; uuencode test.file test.file ) | mail john_smith@the_moon.com

However, how do I also send to another recipient on the same command line. Obviouly could replicate the line - but don't think I need to.....

I've got it using mailx - but am still curious about mail

(cat mailtext ; uuencode test.log test.log ) | mailx 'peter@dot.com, john@dot.com'

That works.......

Simple (with quotes) - but with the mail command (instead of mailx) it says "Recipient names must be specified"

I'm on Solaris 2.6 - used the following with no problem:

$ mail joeuser@mycom.com,joeuser@yahoo.com < /etc/motd

Worked under ksh and csh.

I've used the following with success in the past.

xemails="cameron@SomeDomain.com,someoneelse@SomeDomain.com"
#
function SendEmail {

  xsub="Some Subject Of Your Choosing."
  mail -s "$xsub" $xemails < $1

}  ## End-of-function SendEmail

The aliases file for sendmail allows you to point to a file; so the way I do what you are asking is to put the names in a file that is part of /etc/aliases and send mail to the alias.

On HP-UX I could put a list of recipients separated with just a space, and it worked:

cat $myFile | /usr/lib/sendmail -i -t

with in myFile a line like:
To: aaa@whatever.com bbb@whatever.com

Hope this will help.