You can put "&" sign at last of the command to run the command in background.
Eg; find -maxdepth 1 -type f -name '*.php' /home/username/public_html/ &
You can put "&" sign at last of the command to run the command in background.
Eg; find -maxdepth 1 -type f -name '*.php' /home/username/public_html/ &