[Breezy] Backups to USB Disk

[Jim Richardson]

On Tue, 2005-12-06 at 00:00 -0800, Ed Fletcher wrote:
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> 'Forum Post wrote:
> | Would the copy command work for you?  (cp).  It does have an "update"
> | option that copies new files and any that have been changed.  I haven't
> | used it for this purpose and don't know how fast it would be - of course
> | this depends upon the amount of data you wish to move.  It also has a
> | recursive option that would need to be invoked.
> |
> | I use tar for a backup of my home directory and you could probably use
> | this in a small bash program to automate it so that it would backup the
> | home directory and then extract it onto the usb drive.  It has lots of
> | options such as only backing up new or changed files.
> |
> | Dar is another program that might be of assistance - from what I have
> | seen it is like tar but more powerful.  It is available through the
> | repositories.
> |
> | Hope this is of some help.
> |
> | John_c.
> 
> Thanks John.  It seems that each of these is uni-directional.  So if
> I've added files to both disks, then I'd have to run it once in each
> direction.  I'm suspicious that files added from A to B might be seen as
> new during the copy from B to A.
> 
> I've been doing this with Nautilus so far, but the filesystem is
> approaching one hundred and fifty gigs with most of the activity taking
> place in a subdir with about sixty gigs.  So slotting these in by hand
> is getting tedious.  Not to mention that it's getting easier for me to
> make a mistake and leave a file not copied.
> 
> What I was hoping to find was a command that would look for new files on
> each side and copy them to the other.  Hmmm . . . Maybe it's time I
> learned to write a script.
> 
> Thanks,
> Ed
> - --
> Ed Fletcher
> ed at fletcher.ca


might want to look at unison. Available in Ubuntu, and works well for
me, even between Linux and redmondOS.


-- 
Jim Richardson http://www.eskimo.com/~warlock
Never appeal to a man's 'better nature.' He may not have one. Invoking
his self-interest gives you more leverage. -- Lazarus Long
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