Nottinghack <nottinghack@googlegroups.com>
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Date: Sun, 12 Aug 2012 00:54:25 -0700 (PDT)
From: deejak <dcla...@cix.co.uk>
To: nottinghack@googlegroups.com
Message-Id: <da184c0c-8a54-4379-b792-7704ff3022e7@googlegroups.com>
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 <6553D6B2-834A-4D52-8E64-EE0081181DAA@dr.com>
Subject: Re: [Nottinghack] Raspberry Pi project
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Rsync is an excellent utility for this sort of thing. It is particularly 
good for transferring over a slow link, as the algorithm used identifies, 
and transfers, only those *parts* of each file which have changed. To do 
this, though, it needs a processor at each end of the link. Mac OSX 
apparently comes with rsync as standard.

However, it can be told to copy local files without using the rsync 
algorithm - just identifying changed files using datestamps, etc. The rsync 
command line options are extremely extensive, and although I have 
experience in a Windows & Linux environment, I wouldn't like to advise re 
Mac.

You might find 
http://www.maclawstudents.com/blog/techniques/automatic-backups-to-usb-flash-drives/ 
useful.

David Clarke.

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Rsync is an excellent utility for this sort of thing. It is particularly good for transferring over a slow link, as the algorithm used identifies, and transfers, only those <i>parts</i> of each file which have changed. To do this, though, it needs a processor at each end of the link. Mac OSX apparently comes with rsync as standard.<br><br>However, it can be told to copy local files without using the rsync algorithm - just identifying changed files using datestamps, etc. The rsync command line options are extremely extensive, and although I have experience in a Windows &amp; Linux environment, I wouldn't like to advise re Mac.<br><br>You might find http://www.maclawstudents.com/blog/techniques/automatic-backups-to-usb-flash-drives/ useful.<br><br>David Clarke.<br>
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