O que significa o “+” à direita em bits de permissão de arquivos no Linux?

Question

Eu usei ls -a para listar um arquivo e recebi as seguintes informações:

sqyang@intel4-88: ls -a 123 
-rwxr-xr-x+ 1 root lsf 16845584 Nov 25 21:38 123*

A parte de permissão de arquivo é -rwxr-xr-x+ . O que significa o + no final?

    

Answer 1

The "+" indicates that there is an ACL (Access Control List) entry associated with the file. I don't know about Linux, but ACLs are used on Solaris too. See the manual pages for "getfacl" and "setfacl".

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Answer 2

link

For files that have a default ACL or an access ACL that contains more than the three required ACL entries, the ls(1) utility in the long form produced by ls -l displays a plus sign ( + after the permission string.