Subj : Re: Can I mirror a directory on the same computer ?
To   : alt.comp.linux,alt.comp.os.linux,comp.os.linux
From : Michael Fread
Date : Sun Oct 31 2004 01:13 am

Are you sure your not really just wanting to soft-link the directory?

"I would like files that have been removed from the source 
directory to be removed from the destination directory."

Someone already told you the flags for the copy, for this:

#############
# Start here
#############

SRCDIR=/somewhere
DESTDIR=/elsewhere

#Copy changed files
cp -PuR $SRCDIR $DESTDIR;

#Clean up deleted
for FILE in `ls $DESTDIR`
do
	if [ -f $DESTDIR/$FILE ] then
		if [ ! -e $SRCDIR/$FILE ] then
			rm -f $DESTDIR/$FILE;
		fi
	fi
done
################
# End here
################

This has a few problems, mainly it doesn't cleanup subdirs.
Also if someone were to delete a file in the srcdir, and then
create a directory with the name of the file, it would not
successfully overwrite it.  I also didn't actually run this or
especially double check, could be typoes and minor syntax glitches.

I'll repeat again, what you really want is to rsync or to symlink this
directory.  Failing that, you should have the script delete the dest dir
and do a full copy each time.


On Sun, 31 Oct 2004 04:06:22 +0000, Mark Hobley wrote:

> I want to create a script, which will run from a cron job to mirror the 
> contents of one directory to another.
> 
> Both directories are on the same computer, so I don't want to use rsync, or 
> fmirror.
> 
> I know that I can use cp -r.
> 
> I would like to copy only files that differ from those in the destination 
> directory, and I would like files that have been removed from the source 
> directory to be removed from the destination directory.
> 
> Is there a simple way of mirroring directories in this manner ?
> 
> Thanks in advance.
> 
> Regards,
> 
> Mark.

.