On 08/19/2015 09:07 AM, David Sommerseth wrote: > On 19/08/15 14:51, Chris Schanzle wrote: > [...snip...] >> >I wouldn't imagine migrating to the new scheme would be*that* difficult >> >once you nail down the user, old uid, new uid, change their passwd uid, >> >then run something like this on all your systems: find PATHS -user >> >$oldID -exec chown -h $newID {} + > I've done this a few times. Basically my routine was: > > --------------------------------------------------------------- > for d in /home /var /tmp; # See note below > do > find $d -uid ${OLD_UID} -exec chown -ch ${NEW_UID} {} \; > find $d -gid ${OLD_GID} -exec chgrp -ch ${NEW_GID} {} \; > done; That's fine, but there's no need for the loop -- just put all the paths right after "find". And by using the + operator, you don't fork chown/chgrp for every file. If you're changing GID's too, separating out the GID search/reset is a good idea to ensure you get all the GID's (not just those matching a UID and using chown -h ${NEW_UID}:${NEW_GID}, which could result in unexpected GID changes.