Shell periodically deletes files before the specified time

Template
Cat delbak.sh
#!/bin/sh
location= "/root/sqlbak/"
Find $location-mtime +30-type f |xargs rm-f

Ps:

Location is the directory where the lookup is set
--mtime +30 is set time is 30 days ago
-type F this week the type of lookup is file

Then add crontab timing to delete:

Crontab-l
4 1 * */bin/sh/root/soft_shell/delbak.sh

Set to 1th on every month. 4:10 execute the script. Of course, you can do it according to your own needs.

The same deletion method:

Find/root/sqlbak-mtime +30-type f-name *.gz-exec rm-f {} \;

Shell periodically deletes files before the specified time