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Old 05-15-2006, 10:40 AM   #1
coontie
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Registered: Jun 2003
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how to use rsync to update date/time only


Hi, everybody. I've 2 machines and I rsync data from a->b. I accidentally reset the modification times (recursively) on the entire /home/user directory on A. Now, whenever I try to rsync a->b it wants to rsync everything, since every file on A has now become older than the exact same file on B. Switching to checksum-based rsyncing is not an option because it literally takes over 8 days to process the files.

I'm thinking there's got to be a way to use rsync to go b->a, setting all the modification datetime on A to match those on B.

Any way to do that?

Thanks in advance..
 
Old 05-15-2006, 11:08 AM   #2
macemoneta
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Since rsync uses the timestamp and filesize to determine what has to be transferred, transferring only the timestamp would be a nonsensical operation for rsync.

You'll need to create a script to reset the timestamps on the files, using an ls/find output from the source system as a data source. You can reset a file's modification timestamp with the touch command.
 
Old 05-15-2006, 11:13 AM   #3
coontie
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Quote:
Originally Posted by macemoneta
Since rsync uses the timestamp and filesize to determine what has to be transferred, transferring only the timestamp would be a nonsensical operation for rsync.

You'll need to create a script to reset the timestamps on the files, using an ls/find output from the source system as a data source. You can reset a file's modification timestamp with the touch command.

yea, that's what I figured.

thx.
 
  


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