Crontab Job

OS: RHEL 6.10

DB: oracle 11.2 G RAC

Question: I need to following command in a crontab job:

find * -mtime +8 -exec rm -rf {} \;

I would like to run it in this directory: /opt/ora/11.2.0/log/diag/tnslsnr/1234/listener_scan/alert

Can I write it like this in crontab -e:  0 05 15 * *  /opt/ora/11.2.0/log/diag/tnslsnr/1234/listener_scan/alert  find * -mtime +8 -exec rm -rf {} \;

It will run every 15th of a Month at 5 AM, it will remove any files older than 8 days in that directory.

Thanks for your help.