On Mon, Jun 29, 2015 at 12:56:04AM +0200, nerv wrote: > On Sun, 28 Jun 2015 17:39:18 -0500 > Chris Bennett <[email protected]> wrote: > > > I had 4 different hardrives that were failing. > > I bought a 2TB usb drive to back up all the home folders. > > > > I now would like to cp all of the folders and files to another empty > > partition. > > > > But I don't want to overwrite any files with same name but different > > content. > > > > For example: > > > > /homeX/index.html to /homePerfect > > /homeY/index.html to /homePerfect > > > > both have same name but different contents. > > > > I googled but couldn't find any solutions. > > Ideally I would like a list of failed file copies. > > > > Any ideas or scripts or ports? > > Browsing through 4 home folders is a nightmare. > > > > Chris Bennett > > > > If you can't find a switch for cp you may have an easier time using > rsync, but I'm not too familiar with it so I couldn't tell you > what switches to use (It may be able to natively do what you're asking > however). > Writing a script for it using cp should be quite easy, for each of the > partition have the script recursively go into all folders and copy the > files after verifying if the name already exists in the target > partition. If it does, compare checksums, > same checksum : do nothing and go to the next file, > different checksum : copy and append a number to its name (or append to > it a name for the source partition).
I looked at rsync and cp and gnu cp. noclobber just won't do what I want. Using checksums seems like a good part of the answer, but name changing would be very complicated. I have everything read-only except for regular /home, /var, / and /tmp. I do some of my programming in /home folder and I also have many html files. I already wrote software to change file contents to new values, but that adds even more complications for both of those areas. And I want to do this for 4 home folders!!??? Chris Bennett
