On Mon, Aug 9, 2010 at 1:47 AM, Dotan Cohen <dotancohen at gmail.com> wrote: > I have a Debian machine with four users that I plan on migrating to > CentOS. As per Debian habits the UIDs start with 1000. > > Is it enough to reuse the Debian /etc/shadow and /etc/passwd files > over? Or will I need to configure some other things? I had considered > just creating four new users starting from UID 500 then chown -R -ing > the user's home directories, but I find that invasive and possibly > error prone (maybe there are files that are not owned by them). > Durn.... pushed send before I finished thinking.. You'd want to use a find by uid with the exec option.. find . -uid 12345 -exec chown johndoe {} \; Keep in mind that if you have NFS mounts you'll need to synchronize the uids on both systems.