So how do you copy it anyway?
We can use it to backup a single file by passing in the filename argument at the end.
For this, we’ll want to add a couple of command-line arguments.
/full
Copy all files
/skipdenied
Ignore any access denied messages because of permission errors.
/statefile=filename
This flag specifies the file that contains the last backup information.
/incremental
Only copy files that have changed since the last full copy.
After that you’ve got the option to launch the incremental backup with the /incremental switch.