Copy Just the Last Two Days of Files to Another Directory
From HowToGeek
If you've ever wanted to copy only the files from the last day or two, you can use the find command combined with the -exec argument to copy the files somewhere else.
You'll need to use the -mtime command to find files that are less than 2 days old, and use the cp command with the following syntax:
find /var/backups/files/* -mtime -2 -exec cp '{}' /var/backups/remote/ \;
