A.NameVirtualHost*:80 B.ServerTokens OS C.PidFile run/httpd.pid D.ServerRoot“/etc/httpd”
A.awk-F B.cat C.sed-i D.sed-n
A.grep’s/listen.*/listen8080/’/etc/httpd/conf/httpd.conf B.sed-i’s/listen.*/listen8080/’/etc/httpd/conf/httpd.conf C.sed’/listen.*/d’/etc/httpd/conf/httpd.conf D.sed-n’/listen.*/p’/etc/httpd/conf/httpd.conf