From: adam@address.invalid   
      
   [merging posts -- thanks for the clearer examples!]   
      
   Bit Twister wrote:   
   > On Sun, 17 Jun 2012 13:39:12 -0400, Adam wrote:   
   >> I need to look into rsync.   
      
   > rsync -aAvx --delete $HOME/some/dirs/ $HOME/bkup   
   [...]   
   > A few up arrows to rerun the rsync command   
   > and see what you can see.  :)   
      
   Thanks; I tried them.  At least with those options, it looks like it   
   makes the second directory match the first, updating and deleting the   
   second as necessary.  I can see where some of the time, that would be   
   more appropriate than 'cp -u'.  OTOH sometimes I'd prefer backup files   
   /not/ be deleted.  For example, I want the backup of my book project to   
   keep the first, second, etc. drafts, even though my working directory   
   intentionally only has the current draft.   
      
   >> My backup scripts copy all files in selected directories.   
   >   
   > For your everyday user type files. That will work. rsync can get links   
   > and acls (Access Control List) with the additional feature of removing   
   > files in target/destination which are not in from/source partition.   
      
   I don't think I'm usually backing up anything where ACLs would matter.   
   My backups don't include anything that would be restored by a reinstall.   
     They're mainly /home, /accounts, /usr/local, and /etc (because of all   
   the config files in /etc that I've modified).   
      
   Once I get the new system up, I'll have to rethink my backup methods and   
   where rsync would be appropriate.  For the "hot backup" partition (which   
   I'll be implementing), I can see rsync would definitely be the way to go.   
      
   Adam   
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