-append-verify: resume an interrupted transfer.-z/ -compress: compression will only load up the CPU as the transfer isn't over a network but over RAM.There are some speed-ups which can be applied to rsync: Avoid And the -a (archive) flag will be recursive, not recopy files if you have to restart and preserve permissions. The default cp will start again, though the -u flag will "copy only when the SOURCE file is newer than the destination file or when the destination file is missing". The simplest way to preserve most things is to use the -a flag – ‘archive.’ So: rsync -a source destĪlthough UID/GID and symlinks are preserved by -a (see -lpgo), your question implies you might want a full copy of the filesystem information and -a doesn't include hard-links, extended attributes, or ACLs (on Linux) or the above nor resource forks (on OS X.) Thus, for a robust copy of a filesystem, you'll need to include those flags: rsync -aHAX source dest # Linux
As others mention, it can exclude files easily.
And being rsync, it can even restart part way through a large file. I would use rsync as it means that if it is interrupted for any reason, then you can restart it easily with very little cost.
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