Need to change uid and gid

Rick Sewill rsewill at
Sat Nov 12 04:58:01 UTC 2011

On Friday, November 11, 2011 04:22:52 PM Jonathan Ryshpan wrote:
> In the process of upgrading from Fedora-15 to Fedora-16, my uid and gid
> have both been changed from 500 to 1000.  I maintain a "mirror" of my
> system as backup using rsync, so in order for the mirroring to continue
> properly the uid and gid in the mirror filesystem have to be changed to
> match the main one.  There's no problem with my home directory, just use
> "$ chown --recursive 1000.1000" in the mirror of my home directory.
> However there are a few odd files, like my crontab
> file /var/spool/cron/jonrysh which needs to have its uid (but NOT its
> gid) changed.
> Where is a convenient script to do this?  There must be one, since this
> is essentially what was done in the upgrade from Fedora-15 to Fedora-15.
> Many Thanks - jon

I would suggest 
find . -uid 500 -exec chown -h owner \;
find . -gid 500 -exec chgrp -h group \;

The -h option says do the chown or chgrp to the symbolic link
instead of following the symbolic link.  Without the -h option,
the symbolic link is followed, causing the symbolic link ownership
to not be changed.

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