单项选择题
A.-c B.-v C.-n D.-i
A.grep"IPADDR$"/etc/sysconfig/network-scripts/ifcfg-eth0 B.grep"IPADDR#"/etc/sysconfig/network-scripts/ifcfg-eth0 C.grep"!IPADDR"/etc/sysconfig/network-scripts/ifcfg-eth0 D.grep"^IPADDR"/etc/sysconfig/network-scripts/ifcfg-eth0
A.-i B.-f C.-n D.-h
A.grep"^#"/etc/grub.conf B.grep-n"^#"/etc/grub.conf C.grep"#$"/etc/grub.conf D.grep-v"^#"/etc/grub.conf
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