小编Ala*_*lan的帖子

我在 CentOS 6.2 上，并且有一个文件，其中备用访问方法字符显示为一个点。

ls -l myfile
-rwxr-x---. 1 me mygroup   172 Aug 13 10:03 myfile
          ^ 
          This dot.

从显示为 ls 的帮助信息 coreutils 'ls invocation'

Following the file mode bits is a single character that specifies
whether an alternate access method such as an access control list
applies to the file.  When the character following the file mode
bits is a space, there is no alternate access method.  When it is
a printing character, then there is …