Setting up tmpreaper

Tmpreaper is a system utility which can delete files in specified temporary directories

It is configured via /etc/tmpreaper.conf which is called from a /etc/cron.daily/ job

important directives below:

TMPREAPER_TIME=1h
TMPREAPER_PROTECT_EXTRA=''
TMPREAPER_DIRS='/tmp/. /var/www/heatwave/current/tmp/.'
TMPREAPER_DELAY='256'
TMPREAPER_ADDITIONALOPTIONS=''

Read more about it

http://www.thegeekstuff.com/2013/10/tmpreaper-examples/