Bash script that emails what you pipe to it via stdin. (Probably a jillion of these out there; so many that I had trouble Googling one.) Example usage: tail /var/logs/stuff.log | ./mailstuff.sh

mailstuff.sh

#!/bin/bash
# Mails whatever it gets from stdin.

to="you@your.org"
subject="Something is happening on $HOSTNAME"
body="The first line of the email body.\n";

while read -r line; do
  [[ $line = \#* ]] && continue
  body="$body$line\n"
done < /dev/stdin

echo -e $body | mail -s "$subject" $to