Manage Session folder

i'm on linux , this cleared my session dir and left the index.html intact

Code:

sudo rm                            /srv/http/ads.com/writable/session/ci_*

So if you set up a cron job as root , using something similar at a good estimated time interval , then that would periodically clear,

I assume the server is linux OS ?

CMS CI4     I use Arch Linux by the way