O que significa o campo “flags” em getfacl?

Question

Estou tentando definir permissões em um servidor entre usuários que usam ACLs. Quando estou verificando o status deles em um dos diretórios usando getfacl dir10 , ele mostra:

root@svn:/srv/resources/somedir# getfacl dir10
# file: dir10
# owner: root
# group: mygroup
# flags: -s-

O que esses sinalizadores significam? Como posso mudá-los?

    

Answer 1

de man getfacl :

 The output format of getfacl is as follows:
               1:  # file: somedir/
               2:  # owner: lisa
               3:  # group: staff
               4:  # flags: -s-
 [...]
 Line  4  indicates the setuid (s), setgid (s), and sticky (t) bits:
          either the letter representing the bit, or else a dash (-).
          This line is included if any of those bits is set and left out
          otherwise, so it will not be shown for most files. (See
          CONFORMANCE TO POSIX 1003.1e DRAFT STANDARD 17 below.)

o conjunto desses valores, veja man setfacl :

   --restore=file
       Restore a permission backup created by 'getfacl -R' or similar.
       All permissions of a complete directory subtree are restored using
       this  mechanism.  If the input contains owner comments or group
       comments, setfacl attempts to restore the owner and owning group. If
       the input contains flags comments (which define the setuid, setgid,
       and sticky bits), setfacl sets those three bits accordingly;
       otherwise, it clears them. This  option  cannot  be  mixed  with
       other options except '--test'.