[Solved] setfacl error: Option -m: Invalid argument near character 3

[root@szb ~]# setfacl -m u:zwx:rw-test
Error: setfacl: Option -m: Invalid argument near character 3
Reason: zwx user does not exist, create or specify an existing user as the operation target

Workaround:

[root@szb ~]# setfacl -Rm u:root:rw-test
[root@szb ~]# getfacl test
# file: test
# owner: root
# group: root
user::rw-
user:root:rw-
group::r--
mask::rw-
other::r--

One, setfacl command

setfacl command – set file ACL rules
setfacl (set file access control list), that is, "set file access control list".
The assignment of permissions can be controlled more precisely, such as allowing a user to have certain permissions on a certain file.

parameter	meaning
-R	–recursive recursively operate on subdirectories
-m	–modify-acl change file access control list
-x	–remove=acl removes entries from the access control list in the file

[root@szb ~]# setfacl -Rm u:root:rw-test
[root@szb ~]# getfacl test
# file: test
# owner: root
# group: root
user::rw-
user:root:rw- # added here, no default
group::r--
mask::rw- # added here, no default
other::r--

Second, getfacl command

getfacl command – displays the ACL policy of a file or directory
[root@szb ~]# getfacl shell_17/
# file: shell_17/
# owner: root
# group: root
user::rwx
group::r-x
other::r-x

parameters	definition
-c	Do not display comment title
-t	Use tabular output format
-R	recurse into subdirectories
-a	show file ACL
-e	show all effective permissions
-n	show user UID and group GID

[root@szb ~]# getfacl -t shell_17/
# file: shell_17/
USER root rwx
GROUP root r-x
other r-x