A.cmd ./test.sh

B.run test.sh

C../test.sh

D.bash test.sh

E.${test.sh}

A.Apache HTTPD

B.Postfix

C.Curl

D.Dovecot

E.NGINX

A.&

B.#

C.!

D.*

E.$

A.Platform as a Service(PaaS)

B.Infrastructure as a Service(IaaS)

C.Internet as a Service(IaaS)

D.Graphics as a Service (GaaS)

E.Software as a Service (SaaS)

A./etc/id

B./etc/passwd

C./home/index

D./var/db/users

E./etc/group