Linux Command series ACL max permissions, delete, recursive (__linux)

Maximum Effective permissions Mask

Mask refers to specifying the maximum valid permissions, and if root gives the user ACL permission, is required and mask permission "phase"

To get the user's real rights.

Setfacl-m m:rx filename

Permissions to mask are r-x, using the "M:RX" format

2. Remove ACL permissions

Setfacl-x u: User name filename

Remove ACL permissions for a specified user

Setfacl-x g: Group name File name

Remove ACL permissions for a specified group

Setfacl-b file name

Remove all ACL permissions under a file

3. Recursive ACL permissions (set ACLs on existing files for the directory)

Recursion: Parent directory has, subdirectories have

setfacl-m u: User name: Permission-r filename

4. Default ACL permissions (ACL for files after the directory)

If ACL permissions are set on the parent directory, new files created in the parent directory also inherit ACL permissions from the parent directory

Setfacl-m d:u: User: Permission name file name