Computer Tips - What's the fastest way to copy a directory tree for backup
Q. What's the fastest way to copy a directory tree for backup
A. While I am not 100% sure this is the fastest its what I use
and it seems to work pretty well.
rsync --delete --archive --checksum /from/dir/ /to/dir
Make sure you have a trailing slash on the from directory.
This is fast because rsync will only copy what has changed.
Rsync is most commonly used to copy over a network where extra
work is even more expensive. But it works locally too.
I use a command like this to copy all of one computer to another
For Windows, I hear cwRsync works fine.
And you can use rsync from cygwin.
There is also rdiff-backup which is easier to use.