sync to external drive

[Gary J. Kirkpatrick]

On Sun, Nov 26, 2017 at 3:35 PM, Ralf Mardorf <silver.bullet at zoho.com>
wrote:

> >> https://github.com/peckto/gdar
>
> "You can create a full backup of your home partition with dar by
> issuning the following command: # dar -R /home/ -c /var/backup/home-$(date
> "+%Y%m%d")"
>
> In this context the above example doesn't fit the definition of a
> backup. While writing a script you could make a backup of myscript.sh
> to myscript.sh.bak even in the same directory, but if upstream of
> software provides an example to backup /home to /var I would be careful
> with using such software for _real_ backups of important data. Is there
> a plausible reason to assume that the software is better, than the
> idiotic example?
>
>
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Rather overwhelmed with all the responses.  What I am looking for is
syncing not just copying, like say Dropbox does.  So the program would make
an initial copy and then only add new files or changes to previously copied
files.  I have tried a couple of programs mentioned but what they do is
make another copy of the entire initial copy.  This is way too slow and
unnecessarily stresses the drives involved.

garyk
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