A.Match the preceding qualifier zero or more times.

B.Match the preceding qualifier zero or one times.

C.Match the preceding qualifier one or more times.

D.Match a literal ?character.

A./sbin/init

B./lib/init.so

C./proc/sys/kernel/init

D./etc/rc.d/rcinit

E./boot/init

A.yum taskinstall admintools

B.yum collection install admintools

C.

D.yum install admintools/*

E.yum groupinstall admintools

A.tr '\r' '\n' userlist.txt newlist.txt

B.tr '\r\n' '' <userlist.txt> newlist.txt

C.tr -s '/^M/^J/' userlist.txt newlist.txt

D.tr -d '\r' < userlist.txt > newlist.txt

E.tr -c '\n\r' '' <newlist.txt> userlist.txt