Someone

[root@localhost ~]# ps ax|grep httpd
 4165 pts/1    S+     0:00 grep httpd
[root@localhost ~]#
[root@localhost ~]# etc/rc.d/init.d/httpd start
bash: etc/rc.d/init.d/httpd: No such file or directory
[root@localhost ~]# apachectrl
bash: apachectrl: command not found
[root@localhost ~]# apachectl
Usage: /usr/sbin/httpd [-D name] [-d directory] [-f file]
                       [-C "directive"] [-c "directive"]
                       [-k start|restart|graceful|stop]
                       [-v] [-V] [-h] [-l] [-L] [-t] [-S]
Options:
  -D name           : define a name for use in <IfDefine name> directives
  -d directory      : specify an alternate initial ServerRoot
  -f file           : specify an alternate ServerConfigFile
  -C "directive"    : process directive before reading config files
  -c "directive"    : process directive after reading config files
  -e level          : show startup errors of level (see LogLevel)
  -E file           : log startup errors to file
  -v                : show version number
  -V                : show compile settings
  -h                : list available command line options (this page)
  -l                : list compiled in modules
  -L                : list available configuration directives
  -t -D DUMP_VHOSTS : show parsed settings (currently only vhost settings)
  -S                : a synonym for -t -D DUMP_VHOSTS
  -t                : run syntax check for config files
[root@localhost ~]# apachectl -k start
[root@localhost ~]# ps ax|grep httpd
 4213 ?        Ss     0:00 /usr/sbin/httpd -k start
 4214 ?        S      0:00 /usr/sbin/httpd -k start
 4215 ?        S      0:00 /usr/sbin/httpd -k start
 4216 ?        S      0:00 /usr/sbin/httpd -k start
 4217 ?        S      0:00 /usr/sbin/httpd -k start
 4218 ?        S      0:00 /usr/sbin/httpd -k start
 4219 ?        S      0:00 /usr/sbin/httpd -k start
 4220 ?        S      0:00 /usr/sbin/httpd -k start
 4221 ?        S      0:00 /usr/sbin/httpd -k start
 4223 pts/1    S+     0:00 grep httpd