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

See also

• cron
• cron.daily, cron.hourly etc.
• Count all files in a directory, recursively
• How to find files with Spaces in their name