Duplicate Linux file user, group and permissions attribute

Question

How can I copy all the files attributes of file B, into file A in command line ? (A & B are differents)

ex: A user user 666, B root root 770

result --> A root root 770

thanks

Answer 1

chown --reference=B A
chmod --reference=B A

This works on Linux/GNU. On other systems you might need to go a more complicated route, or install the GNU coreutils.

Answer 2

You should be able to use chmod --reference=B A