rsync

https://rsync.samba.org
https://en.wikipedia.org/wiki/Rsync

Notes

Spaces in filenames? No problem!

https://rsync.samba.org/FAQ.html#9


CC0 / Public domain dedication To the extent possible under law, d3vid seaward has waived all copyright and related or neighboring rights to "rsync in Grasmere notebook, including code snippets" (why? how?)