Basic example
rsync -avz ./src /dest
OSX
--exclude '.Trashes'
--exclude '.Spotlight-V100'
--exclude '.fseventsd'
Transfer options
-z, --compress
-n, --dry-run
Display options
-q, --quiet
-v, --verbose
-h, --human-readable
--progress
Skipping options
-u, --update # skip files newer on dest
-c, --checksum # skip based on checksum, not mod-time & size
Backup options
-b, --backup # backup with suffix
--suffix=SUFFIX # default ~ without --backup-dir
--backup-dir=DIR
Include options
--exclude=PATTERN
--include=PATTERN
--exclude-from=FILE
--include-from=FILE
--files-from=FILE # read list of filenames from FILe
Archive options
-a, --archive # archive (-rlptgoD)
-r, --recursive
-l, --links # copy symlinks as links
-p, --perms # preserve permissions
-t, --times # preserve times
-g, --group # preserve group
-o, --owner # preserve owner
-D # --devices --specials
--delete # Delete extra files