https://linuxconfig.org/how-to-stop-start-and-disable-enable-firewall-on-redhat-7-linux-system

find / -mtime -1 -print find /ud1002/dac -mmin -20 https://stackoverflow.com/questions/33407344/how-to-find-files-modified-in-last-x-minutes-find-mmin-does-not-work-as-expect/33407491

find . -name “*.*” -size +500000k -exec ls -ltr {} \;