rsync private Git avoid sharing credentials

Recommended: rather than using Rsync, it is more convenient to give the remote host read-only Git access via:

Rsync over SSH allows one to edit and update code without putting credentials on the remote host.

Laptop to remote host:

rsync -r -t -v -z --exclude={build/,.git/} ~/myProg login@host:myProg
Exclude syncing of Git information and build/ directory, which wastes time and may fail
-z --compress
compress data for transfer
-r --recursive
recursively sync directories
-t --times
preserve modification times
-v --verbose
verbose output