merge documents with scp

[kitepilot at kitepilot.com]

> how would I rsync just what has been modified?

If I interpret this question as:
'how would rsync know just what has been modified?'
The answer is: it depends.
rsync will compare timestamps unless you use the --checksum option.
RTFM... 

If I interpret this question as:
'how would I know just what rsync has updated?'
You don't, you trust rsync.
I you don't trust rsync (I don't), you can run it twice with the --checksum 
option (I do) or you can:
ssh user at box 'cd my-path;find . -type f -exec md5sum "{}" \;|sort' > 
/tmp/remote.md5
cd my-path;find . -type f -exec md5sum "{}" \;|sort > /tmp/local.md5
sdiff -s /tmp/remote.md5 /tmp/local.md5
Ang get your banana...   :) 

Good luck...
ET 

PS: Free advice, you can't sue me...   :) 

 


Michael Havens writes: 

> thanks. this is  takling a long time..... how would I rsync just what has
> been modified? 
> 
> On Fri, Apr 27, 2012 at 1:51 PM, Nathan England <nathan at nmecs.com> wrote: 
> 
>> ** 
>>
>>
>> You need to use rsync 
>>
>> 
>>
>> rsync -av /path/to/localfile user at remotehost:/path/to/remotefile 
>>
>> 
>>
>> or alternatively 
>>
>> 
>>
>> rsync -av user at remotehost:/path/to/remotefile /path/to/localfile 
>>
>> 
>>
>> 
>>
>> 
>>
>> 
>>
>> 
>>
>> 
>>
>>
>> On Friday, April 27, 2012 13:46:40 Michael Havens wrote: 
>>
>> thanks for the quick responses.... what I meant is like to have duplicate
>> files on two systems and then make the files the same. 
>>
>> On Fri, Apr 27, 2012 at 1:07 PM, Carruth, Rusty <
>> Rusty.Carruth at smartstoragesys.com> wrote: 
>>
>> Fast answer: 
>>
>> 
>>
>> ssh me at foosystem ‘cat the_Remote_file’ >> localfile 
>>
>> 
>>
>> Explanation: 
>>
>> 
>>
>>                 On system ‘foosystem’ (as me), cat the file.  On this
>> system, append that stream of bytes to ‘localfile’. 
>>
>> 
>>
>> Should you want to ‘tail –f’ the file on ‘foosystem’, change ‘cat’ to
>> ‘tail –f’.  (Or grep, or …) 
>>
>> 
>>
>> Rusty 
>>
>> 
>>
>> . 
>>
>> 
>>
>> From: plug-discuss-bounces at lists.plug.phoenix.az.us [mailto:
>> plug-discuss-bounces at lists.plug.phoenix.az.us] On Behalf Of Michael Havens
>> Sent: Friday, April 27, 2012 1:05 PM
>> To: Main PLUG discussion list
>> Subject: merge documents with scp 
>>
>> 
>>
>> is there a way to tell scp to add any appended text to an existing
>> document? (that's called 'merge', right?) 
>>
>> --
>> :-)~MIKE~(-: 
>>
>>
>> ---------------------------------------------------
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>>
>> 
>>
>>
>> --
>> :-)~MIKE~(-: 
>>
>> 
>>
>> -- 
>>
>> 
>>
>> Regards, 
>>
>> 
>>
>> Nathan England 
>>
>> 
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
>>
>> NME Computer Services http://www.nmecs.com 
>>
>> Nathan England (nathan at nmecs.com) 
>>
>> Systems Administration / Web Application Development 
>>
>> Information Security and Consulting 
>>
>> (480) 559.9681 
>>
>> 
>>
>> 
>>
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>  
> 
> 
> -- 
> :-)~MIKE~(-: