setfacl command

Definition:

• set file access control lists
• When working with users, the format is u:{user name}:{permissions}
• When working with groups, the format is g:{group name}:{permissions}
• The -M and -X options read an ACL from a file or from standard input.

Synopsis:

• setfacl
  • [-bkndRLPvh]
  • [{-m|-x} acl_spec]
  • [{-M|-X} acl_file]
  • file/dir ...
• ..

List of options:

• -b, --remove-all
  • Remove all extended ACL entries.
  • The base ACL entries of the owner, group and others are retained.
• …
• -R, --recursive
• --set, --set-file
  • The —set and —set-file options set the ACL of a file or a directory.
  • The previous ACL is replaced.
  • ACL entries for this operation must include permissions.
• -m, --modify and -M, --modify-file
  • modify the exsiting acl
• -x, --remove and -X, --remove-file
  • remove ACL entries.
  • It is not an error to remove an entry which does not exist.
  • Only ACL entries without the perms field are accepted as parameters
    • unless POSIXLY_CORRECT is defined.
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