On May 20, 2012, at 10:43 , Burton Samograd wrote: > Could somebody explain to me why there is no concept of > chown on plan9 and what is the plan9 way around changing > the owners and groups of files? Thanks. it's simply not part of the model. we tend to use groups for many things modern unixes use "special" users for. also our tools tend to be less paranoid about such things. you've discovered the most general-purpose alternative already: copy the file. if you need something beyond that, you need to be on the file server console (wstat, or srv a permissive version of the tree). anthony