https://unix.stackexchange.com/questions/307046/real-time-file-synchronization
https://github.com/axkibe/lsyncd
---- -- User configuration file for lsyncd. -- -- Simple example for default rsync. -- settings { statusFile = "/home/root/lsyncd.stat", statusInterval = 1, logfile = "/home/root/lsyncd.log", maxProcesses = 2, } sync{ default.rsync, source="/home/root/test_sync_src/", target="/home/root/test_sync_dist/", delay = 1, rsync = { append = false, compress = true, group = true, owner = true, } }