Apache In Linux

Start Apache
goto /usr/local/apache2/bin
type: ./apachectl start

Stop Apache
goto /usr/local/apache2/bin
type: ./apachectl stop

Check Apache Service Available or Not
ps -ef | grep apache

If apache up, it will show something like this:-
daemon 1599 1589 0 10:52:38 ? 0:00 /usr/local/apache2/bin/httpd -k start
daemon 1600 1589 0 10:52:38 ? 0:00 /usr/local/apache2/bin/httpd -k start
daemon 1598 1589 0 10:52:37 ? 0:00 /usr/local/apache2/bin/httpd -k start