Delete files older than 90 days
Count old files
First, count files older than 90 days...
find . -mtime +90 -type f | wc -l
Note that this is recursive... to be non-recursive:
find . -maxdepth 1 -mtime +90 -type f | wc -l # non-recursive version
List old files
Next, list files older than 90 days...
find . -mtime +90 -type f
(note, could specify a specific/absolute folder instead of "." for current folder)
Note -type f means "files"
Delete old files
Happy with the result? Add a -delete parameter to delete those files. So long, files!
find . -mtime +90 -type f -delete
Or for 20 days...
find . -mtime +20 -type f -delete
Cool!
Daily CRON to delete old files from a specific folder
Now to add it to cron job, for a specific folder...
Add the following to a new file in the folder /etc/cron.daily (Learn more about - cron.daily, cron.hourly etc. in this TIL, if you wish.)
#!/bin/sh
find /opt/webapps/nimbletext2.com/app/DATA/NimbleText.com.Models.Usage -mtime +20 -type f -delete
And as described in cron we can check the cron logs with:
sudo grep CRON /var/log/syslog