Linux facl (File access control list)

There are three types of permissions for files

Other permissions that belong to the Master permission group permission

Now there is a scenario where user A wants to share the file with user B not in the same group, but does not want to modify other permissions, and Facl is working.

Facl can add an extended permission to the file, only need to add user B to the file extension permission list and give permission.

Facl usage:

Get File Facl

Getfacl file name

file : Facl.txt    # owner:eko# GROUP:EKOUSER::RW-user:tom:rwx        //  Here to the user Tom assigned a rwx permission group::rw-mask::rwxother::r--

Add Facl to a file

Setfacl-m u: User name: Permissions eg:    -M u:tom:rwx

Cancel Facl

Setfacl-x u: User name eg    -x U:tom

Linux facl (File access control list)