我们有脚本查看输出的输出ls -l
以获取权限信息,这些脚本最近在 RHEL v6 系统上出现故障,似乎.
在权限条目的末尾显示了一个以前没有的额外内容:
[root@rhel6vm ~]# ls -l
total 44
-rw-------. 1 root root 1399 Aug 17 15:01 anaconda-ks.cfg
-rw-r--r--. 1 root root 25485 Aug 17 15:01 install.log
-rw-r--r--. 1 root root 7253 Aug 17 14:59 install.log.syslog
[root@rhel6vm ~]#
^
| up there
句号代表什么?还有什么可以代替它?
答案1
info ls 显示:
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 an SELinux
security context, but no other alternate access method.
A file with any other combination of alternate access methods is
marked with a `+' character.
答案2
GNU ls 使用.
字符来指示具有 SELinux 安全上下文的文件,但没有其他替代访问方法。
具有任何其他替代访问方法组合的文件都以字符标记+
。