filelist calculation algoritm

[jw schultz]

On Wed, Jan 08, 2003 at 09:42:39AM +0100, Lorenzo Bettini wrote:
> jw schultz wrote:
> >On Tue, Jan 07, 2003 at 07:15:27PM +0100, Lorenzo Bettini wrote:
> >
> >>Aaron Morris wrote:
> >>
> >>>You did not specifically mention it:  compression (-z) would probably 
> >>>help more than anything.  Otherwise, you could do something like:
> >>>
> >>>Have a file (ie filelist.txt) that contains the filename (with relative 
> >>>paths), one file per line.
> >>>
> >>>rsync -rRWz `cat filelist.txt` user at hostname::module
> >>>
> >>
> >>as I understand this works only when connecting to a rsync daemon... 
> >>what if I wanted to use ssh as a shell?
> >
> >
> >Compression works fine over ssh.  Don't know where you got
> >the impression it doesn't given what is in the manpage.
> >
> 
> I did not refer to compression: I was wondering if there's a way for 
> updating only a list of files with the `cat` trick...

Sorry.  I just couldn't imagine the command substitution not
working.  It is a property of the shell, not rsync.

Actually, in the case of a pull operation it won't work with
a daemon but will via remote shell (ssh, rsh, etc) as the
remote rsync command line will be executed via a shell which
will be able to do command substitution.  It is just a
matter of quoting to defer interpolation.  This was
addressed a couple of months ago on this list.

The one drawback to this method of dealing with a list is
that it will flatten it.  Each item in the list will be
synced to the same destination as though you had run
separate rsync commands.

-- 
________________________________________________________________
	J.W. Schultz            Pegasystems Technologies
	email address:		jw at pegasys.ws

		Remember Cernan and Schmitt