Copy or rsync command

Question

The following command is working as expected...

cp -ur /home/abc/* /mnt/windowsabc/

Does rsync has any advantage over it? Is there a better way

Answer 1

Especially if you use a copy-on-write filesystem like BTRFS or ZFS, rsync is much better.

I use BTRFS, and I have this in my ~/.bashrc:

alias cp="rsync -ah --inplace --no-whole-file --info=progress2"

The important flag here for CoW FSs like BTRFS is --inplace because it only copies the changed part of the files, doesn't create new for small changes between files inodes, etc. See this.