I’m not looking to identify all duplicates. I want to know what unique data might be on a disk labeled “backup"…. To determine this the software (rsync?) must query an index of ALL specified drives where the original pathname may be very different for each an every file. Can rsync perform the equivalent of a Finder query for each and every file on the source drive (the drive labeled “Backup”)? The goal is to not recycle a disk unless it is confirmed that all files are represented elsewhere. Does that clear things up? I’m not aware of any utility that offers this feature.
Robert > On Mar 14, 2017, at 5:33 PM, Keisuke Miyako via 4D_Tech > <4d_tech@lists.4d.com> wrote: > > for simply synchronising two directories possibly on a separate volume, > rsync has been around for quite some time. > > https://en.wikipedia.org/wiki/Rsync > > but I may be getting wrong the "this" in "anything that will do this". > >> 2017/03/15 6:56、Robert ListMail via 4D_Tech <4d_tech@lists.4D.com> のメール： >> Actually, I’ve looked for years and have never found anything that will do >> this. It’s not impossible to do what needs to be done manually, it’s just a >> royal pain and prone to user errors that could result in data loss. Do you >> have a tool in mind? I’m not looking to reinvent the wheel. ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
