| -e | Allows you to override the default shell used as the transport for rsync. Command line options are permitted after the command name. |
| -a, --archive | This is equivalent to -rlptgoD. It is a quick way of saying you want recursion and want to preserve almost everything (with -H being a notable omission). The only exception to the above equivalence is when --files-from is specified, in which case -r is not implied. <br/>Note that -a does not preserve hardlinks, because finding multiply-linked files is expensive. You must separately specify -H. |
| -P | Equivalent to --partial --progress. Its purpose is to make it much easier to specify these two options for a long transfer that may be interrupted. |
| -z, --compress | Compress file data during the transfer |
| --delete | Delete extraneous files from dest dirs |