быстрый, универсальный, удаленный (и локальный) инструмент для копирования файлов (a fast, versatile, remote (and local) file-copying tool)
SETUP
See the file README.md for installation instructions.
Once installed, you can use rsync to any machine that you can
access via a remote shell (as well as some that you can access
using the rsync daemon-mode protocol). For remote transfers, a
modern rsync uses ssh for its communications, but it may have
been configured to use a different remote shell by default, such
as rsh or remsh.
You can also specify any remote shell you like, either by using
the -e command line option, or by setting the RSYNC_RSH
environment variable.
Note that rsync must be installed on both the source and
destination machines.
