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Create incremental backups using an rsync shell script
Authored by: rflorence on Mar 22, '07 08:47:08AM

Unless you modify the source to rsync (instructions are available at several sites on the web) and recompile it, rsync presents several problems as a backup tool: when used with the -E flag to backup attributes it reports an error when it fails to delete the pseudo-file (._filename) complement of an already deleted file, and it changes the modification dates of the pseudo-files on each backup.

The modified rsync used with the --delete option, and with a Spotlight toggle like the one the poster has copied from Slashdot, does a pretty good job and does not report bogus errors or change modification times inappropriately.

- Ronald Florence



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Create incremental backups using an rsync shell script
Authored by: stsmith on Mar 22, '07 12:53:36PM
Heard about Tiger issues with rsync, at least up until 10.4.4. To the best of my knowledge, I have not experienced any of these difficulties with 10.4.8 or 10.4.9, but as with all backups, caveat emptor. As you say, there are patches to rsync 2.6.3 for the previously mentioned difficulties.

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