How can I send an email through the UNIX mailx command?
an example
$ echo "something" | mailx -s "subject" recipient@somewhere.com
to send attachment
$ uuencode file file | mailx -s "subject" recipient@somewhere.com
and to send attachment AND write the message body
$ (echo "something\n" ; uuencode file file) | mailx -s "subject" recipient@somewhere.com