unison
Install unison on both machines, and make sure both have the same version of unison, with the same version of the ocaml compiler (the smallest difference will cause problems).
unison -version
Create the ~/.unison
directory on both machines.
Make a job called backup
:
vim ~/.unison/backup.prf
You can name the file anything, but it must end in .prf.
Here is an example job, which synchronizes the ~/music
directory with a remote machine.
auto = true
root=/home/ghost
root=ssh://ghost@192.168.0.10//home/ghost/
path=music
ignore=Name *.flac
The last command means it will ignore any file with a name ending in .flac
.
Automatic Runs
The first command means this will run but also confirm which files will be deleted, and which will be transferred, us batch = true
instead.
Or you can deleted that line in the .prf
file and run it with a flag:
unison -batch backup.prf
Set unison to run with crontab or a systemd unit file to have directories synchronize automatically.
Problem Solving
You will see data files summarizing what has happened in the ~/.unison
directory.
If something goes wrong, you may be prompted to delete these to start again.