Also if you want to do rsync on a Windows machine there is a program
called Delta Copy, it is older but works.
Cory
--
Technology is dominated by two types of people: those who understand what they
do not manage, and those who manage what they do not understand. -- Putt's Law
The only way to discover the limits of the possible is to go beyond them into
the impossible. -- Arthur C. Clarke
On 2/12/16 12:08 PM, Jim Willeke wrote:
I agree, rsync is a better choice for these operations.
--times preserve modification times
Can do incremental or full backups.
Runs as a command or a client-to-damen process.
There are several similar scripts using rsync that will perform (at least nearly) any backup conditions you require.
https://blog.interlinked.org/tutorials/rsync_time_machine.html
https://github.com/samdoran/rsync-time-machine/blob/master/rsync-time-machine.sh
--
-jim
Jim Willeke
On Fri, Feb 12, 2016 at 7:14 AM, tech4u <techconsultant4u@xxxxxxxxx <mailto:techconsultant4u@xxxxxxxxx>> wrote:
I know it is designed for doing more like directories/folders and
keep them up to date but I was saying it is an option and if you
use the correct flags(options) you can have the timestamp be what
the file is.
Cory
-- Technology is dominated by two types of people: those who understand what they do not manage, and those who manage what they do not understand. -- Putt's Law
The only way to discover the limits of the possible is to go beyond them
into the impossible. -- Arthur C. Clarke
On 2/11/16 3:07 PM, Chuck wrote:
On Thu, 2016-02-11 at 08:47 -0500, tech4u wrote:
Why not use rsync as a one time command and run it manually if
you wish?
Cory
-- Technology is dominated by two types of people: those who understand what they do not manage, and those who manage what they do not understand. -- Putt's Law
The only way to discover the limits of the possible is to go beyond them
into the impossible. -- Arthur C. Clarke
On 2/10/16 6:06 PM, Chuck wrote:
On Wed, 2016-02-10 at 07:43 -0500, Mike wrote:
On 02/10/2016 12:38 AM, Rob Gibson wrote:
Chuck, There is a one-liner that I have seen you use to make
a copy of a file you are modifying with a datestamp appended
to the filename, and I have been trying to rack my brain for
that one-liner. If I recall, it used 'cp' with a single
argument? Thanks, Rob
Not Chuck, but this should work...
cp devmem2.c devmem2.c-$(date +'%Y-%m-%d')
Mike
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That's very close to what I used to use:
cp -p somefile{,.$(date +%Y%m%d.%H%M%S}
to copy somefile.txt to somefile.txt.CCYYMMDD.hhmmss
I didn't like the way that handled the extension, so at work I
built a shell function that can accept a list of files followed
by a directory and it will insert the .CCYYMMDD.hhmmss. part in
front of the last extension for each and place the copy in the
named folder, stripping off directories. I named the function
cpdate-8.6 and if I call it like:
cpdate-8.6 * ./Archives/
it will make a copy of each file in the current directory, all
with the same time-stamp, and store them in the Archives
directory. Works nice. It uses cp -pPUI I think. The function
became much larger than I anticipated once I started accepting
any random path. I finally cheated and used a library from the
Internets to convert all file names to fully-qualified file
names and then I had to have some logic for proper handling of
file anme extensions, in case the file didn't have one, or had
multiple.
It's a nice exercise. I may try it on this laptop now without
the library...
I use Rsync for many things, but I've never used it to make
backup copies of a file (usually prior to editing it) on the same
system. I'd still ahve to code up something to add a unique
timestamp extension though, wouldn't I?