Você pode ver as permissões estendidas com:
$ /usr/bin/ls -V Presentation.ppt
Isso pode parecer com:
$ /usr/bin/ls -V Presentation.ppt
-rw-r--r--+ 1 root staff 0 Feb 3 14:13 file.1
user:lp:rw------------:------:allow
owner@:--x-----------:------:deny
owner@:rw-p---A-W-Co-:------:allow
user:marks:r-------------:------:deny
group@:-wxp----------:------:deny
group@:r-------------:------:allow
everyone@:-wxp---A-W-Co-:------:deny
everyone@:r-----a-R-c--s:------:allow
Você pode aplicar esse conjunto de configurações da ACL de forma recursiva ao seu compartilhamento:
$ /usr/bin/chmod -R A=\
user:lp:rw------------:------:allow, \
owner@:--x-----------:------:deny, \
owner@:rw-p---A-W-Co-:------:allow, \
user:marks:r-------------:------:deny, \
group@:-wxp----------:------:deny, \
group@:r-------------:------:allow, \
everyone@:-wxp---A-W-Co-:------:deny, \
everyone@:r-----a-R-c--s:------:allow, \
/mnt/share