MAILTO=me@somewhere.com
* * * * * touch /tmp/everyminute.$$
0-55/5 * * * * touch /tmp/every-5-minutes.$$
MAILTO=
5,11,19,37,59 1,3,5,7,11,13,17,19,23 * * * touch /tmp/prime.$$
11,17,30-50/3 5,7,11-22/5,23 * jan-oct/3,12 sun-3/2 touch /tmp/guess-when.$$