a recursive permission
Permission recursion will overflow permissions, so it is very dangerous
Recursion means that when the parent directory sets ACL permissions, all existing sub-files and sub-directories will also have the same ACL permissions. It has no effect on newly created subdirectories and files.
setfacl -mu:username:permissions -R directory name
Recursive permissions can only be given to directories, not files
Two-authority recursive combat
[root @ localhost home] # cd av
[root @ localhost av] # touch cangls
[root @ localhost av] # touch bols
[root @ localhost av] # cd ..
[root@localhost home]# setfacl -m u:lw:rx -R av
[root @ localhost home] # cd av
[root @ localhost av] # ll
total 8
-rw-r-xr--+ 1 root root 0 Aug 5 14:10 bols
-rw-r-xr--+ 1 root root 0 Aug 5 14:10 cangls
[root @ localhost av] # getfacl bols
# file: bols
# owner: root
# group: root
user::rw-
user:lw:r-x
group::r--
mask::r-x
other::r--
[root @ localhost av] # touch cde
[root @ localhost av] # ll
total 8
-rw-r-xr--+ 1 root root 0 Aug 5 14:10 bols
-rw-r-xr--+ 1 root root 0 Aug 5 14:10 cangls
-rw-r--r--. 1 root root 0 Aug 5 14:22 cde
Three default ACL permissions
The function of the default ACL permission is that if the default ACL permission is set for the parent directory, all newly created sub-files in the parent directory will inherit the ACL permission of the parent directory.
setfacl -md:u:username:permissions directory
Four actual combat
[root @ localhost av] # cd ..
[root@localhost home]# setfacl -m d:u:lw:rx -R av
[root @ localhost home] # getfacl av
# file: av
# owner: tony
# group: stu
user::rwx
user:lw:r-x
group::rwx
mask::rwx
other::---
default:user::rwx
default:user:lw:r-x
default:group::rwx
default:mask::rwx
default:other::---
[root @ localhost home] # cd av
[root@localhost av]# touch def
[root @ localhost av] # ll def
-rw-rw----+ 1 root root 0 Aug 5 14:28 def
[root@localhost av]# getfacl def
# file: def
# owner: root
# group: root
user::rw-
user:lw:r-x #effective:r--
group::rwx #effective:rw-
mask::rw-
other::---
[root @ localhost av] # ll
total 12
-rw-r-xr--+ 1 root root 0 Aug 5 14:10 bols
-rw-r-xr--+ 1 root root 0 Aug 5 14:10 cangls
-rw-r--r--. 1 root root 0 Aug 5 14:22 cde
-rw-rw----+ 1 root root 0 Aug 5 14:28 def