mail -s "some subject" someone@domain.edu < some_text_file
 

How can I add which email address it will display its coming from?

Simple perl will do it :

Code:

#!/usr/bin/perl

use strict;
use warnings;
my @body = `cat file.txt`;

open MAIL, "|/usr/sbin/sendmail -t user\@host.net\n"  or die "cannot open sendmail program: $!\n";
print MAIL "From: user\@host.net\n";
print MAIL "Cc: user\@host.net\n";
print MAIL "Subject: subject\n";
print MAIL "\n";
print MAIL  "@body\n";

close MAIL;

PS: file.txt can hold the contents of the email and be in the same directory as the script itself.

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