crontab -e

#
# MAILTO=...
#

*  *  *  *  *  /usr/bin/ruby $HOME/cron/every-minit.rb > /dev/null
0  3  *  *  *  /usr/bin/ruby $HOME/cron/every-night.rb > /dev/null
*  0  *  *  *  /usr/bin/ruby $H...                                              !!!

#
# <<< CR/LF <<<
#

^K, X