I have a folder udp_folder2d------r-T 41 root           root     4096 Apr 26 21:17 udp_folder2when I'm with user other than root, I can't cp -r it into a new folderit says: Permission deniedwhy? and how can I copy it with a user other than root
`cp` permission denied when copy a file owned by `root`
permissions;cp
Well, That would be because the way your current permissions are set, no one can move that file. ( Other than root, because root doesn't follow the same rules. )You would need to either change the owner of the file (chown), OR add the other user to the group 'root' and chmod it so the group can execute on the directory, OR allow everyone else to execute the file. So, a quick fix would be:chmod -R o+rwx udp_folder2That will give everyone the ability to read, write and execute on that directory. Also... if you're attempting to copy 'udp_folder2' into the same directory that it is located now, you'll need the 'w' permission on that directory as well. For example:/foo/udp_folder2 - you'll need 'w' on /foo to copy that directory in /fooI'd suggest learning linux file permissions:Linux File Permission Tutorial