R12.2 why is my apps tier growing?

Recent observation that RUN file system is growing rapidly, on quick analysis its been found that logs in OHS,forms server and reports cache is not being cleaned and has to be done manually.

Below are the location for the above mentioned points.
Schedule a cronjob to delete old access and error log files from the first 2 location and the last location can be purged as and when required.

1. /apps/PROD/fs2/FMW_Home/webtier/instances/EBS_web_PROD_OHS1/diagnostics/logs/OHS/EBS_web_PROD
2. /apps/PROD/fs2/FMW_Home/user_projects/domains/EBS_domain_PROD/servers/forms_server1/logs
3. /apps/PROD/fs2/inst/apps/PROD_prdsrv/logs/ora/10.1.2/reports/cache

Thank you.