文档介绍：( D)、、、、(A)(C),可以采用(C)命令获得帮助A.?(C)++++“user”的命令是(B)“user”及其主目录下所有文件的命令是(B)––––(D)(A)A./etc/work-scripts/ifcfg-eth0B./etc/workC./etc/./etc/(A)A./etc/hostsB./etc/./etc/workD./etc/(B)A./etc/./var/named/./var/named/./etc/(C)(D)目录下A./etc/dhcpd/B./var/log/dhcpd/C./var/lib/dhcp/D./var/lib/dhcpd/,Apache把自己的配置文件放在了(B)目录中A./etc/httpd/B./etc/httpd/conf/C./etc/D./etc/apache/(D)、权限是“400”的、属于root用户的文件的内容(B)(A)(B)、写的文件权限是(A)(A)./etc/./etc/(A卷)(C)(A)