制作Nginx控制脚本实现：service nginx restart|reload|stop|st

vi /etc/init.d/nginx 
#!/bin/sh 
# 
# nginx - this script starts and stops the nginx daemin 
# 
# chkconfig: - 85 15 
# description: Nginx is an HTTP(S) server, HTTP(S) reverse \ 
# proxy and IMAP/POP3 proxy server 
# processname: nginx 
# config: /usr/local/nginx/conf/nginx.conf 
# pidfile: /usr/local/nginx/logs/nginx.pid 
 
# Source function library. 
. /etc/rc.d/init.d/functions 
 
# Source networking configuration. 
. /etc/sysconfig/network 
 
# Check that networking is up. 
[ "$NETWORKING" = "no" ] && exit 0 
 
nginx="/usr/local/nginx/sbin/nginx" 
prog=$(basename $nginx) 
 
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf" 
 
lockfile=/var/lock/subsys/nginx 
 
start() { 
[ -x $nginx ] || exit 5 
[ -f $NGINX_CONF_FILE ] || exit 6 
echo -n $"Starting $prog: " 
daemon $nginx -c $NGINX_CONF_FILE 
retval=$? 
echo 
[ $retval -eq 0 ] && touch $lockfile 
return $retval 
} 
 
stop() { 
echo -n $"Stopping $prog: " 
killproc $prog -QUIT 
retval=$? 
echo 
[ $retval -eq 0 ] && rm -f $lockfile 
return $retval 
} 
 
restart() { 
configtest || return $? 
stop 
start 
} 
 
reload() { 
configtest || return $? 
echo -n $"Reloading $prog: " 
killproc $nginx -HUP 
RETVAL=$? 
echo 
} 
 
force_reload() { 
restart 
} 
 
configtest() { 
$nginx -t -c $NGINX_CONF_FILE 
} 
 
rh_status() { 
status $prog 
} 
 
rh_status_q() { 
rh_status >/dev/null 2>&1 
} 
 
case "$1" in 
start) 
rh_status_q && exit 0 
$1 
;; 
stop) 
rh_status_q || exit 0 
$1 
;; 
restart|configtest) 
$1 
;; 
reload) 
rh_status_q || exit 7 
$1 
;; 
force-reload) 
force_reload 
;; 
status) 
rh_status 
;; 
condrestart|try-restart) 
rh_status_q || exit 0 
;; 
*) 
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}" 
exit 2 
esac