Linux 上的 ls -l 命令中的点是什么？

Question

我在特定文件上的centOS 6.10上运行ls -l 。

我的问题是1之前的这个点（ . ）是什么意思？

-rw-r--r--. 1 root root  575 Oct 23

Answer 1

这意味着该文件具有 SELinux 上下文。 使用ls -Z查看实际的 SElinux 上下文值。 它记录在 GNU Coreutils 的“信息”文件中： What-information-is-listed 。

相关报价：

 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 such a method.

 GNU ‘ls’ uses a ‘.’ character to indicate a file with a security
 context, but no other alternate access method.

 A file with any other combination of alternate access methods is
 marked with a ‘+’ character.

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