The problem of no permission to enter the linux directory

Question

The www directory is set to 770, and the user and group have full permissions.
ykq This user belongs to the www group.

Why does it prompt that there is no permission when cd www directory.

Answer 1

The permissions of your www directory are correct, but the permissions of the previous directory of the www directory are wrong. Make sure that the permissions from the root directory to your www directory are correct, To cdno permission error.

In addition: After modifying the user group information, it is important to log out and log in again to make the user group information effective.

Answer 2

I think you can try using root privileges to see if it works, or sudo cd www and see if it works.