在Ubuntu下安装Nginx有以下方法，但是如果想要安装最新版本的就必须下载源码包编译安装。
一、基于APT源安装
sudo apt-get install nginx
安装好的文件位置：
/usr/sbin/nginx：主程序
/etc/nginx：存放配置文件
/usr/share/nginx：存放静态文件
/var/log/nginx：存放日志
其实从上面的根目录文件夹可以知道，Linux系统的配置文件一般放在/etc，日志一般放在/var/log，运行的程序一般放在/usr/sbin或者/usr/bin。
当然，如果要更清楚Nginx的配置项放在什么地方，可以打开/etc/nginx/nginx.conf
我猜测，Nginx如果指定默认加载/etc/nginx/nginx.conf的配置文件。如果要查看加载的是哪个配置文件，可以用这个命令sudo nginx -t或者ps -ef | grep nginx
然后通过这种方式安装的，会自动创建服务，会自动在/etc/init.d/nginx新建服务脚本，然后就可以使用sudo service nginx {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}的命令启动。
脚本如下：
#!/bin/sh ### BEGIN INIT INFO # Provides: nginx # Required-Start: $local_fs $remote_fs $network $syslog $named # Required-Stop: $local_fs $remote_fs $network $syslog $named # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: starts the nginx web server # Description: starts nginx using start-stop-daemon ### END INIT INFO PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin DAEMON=/usr/sbin/nginx NAME=nginx DESC=nginx # Include nginx defaults if available if [ -r /etc/default/nginx ]; then . /etc/default/nginx fi STOP_SCHEDULE="${STOP_SCHEDULE:-QUIT/5/TERM/5/KILL/5}" test -x $DAEMON || exit 0 . /lib/init/vars.sh . /lib/lsb/init-functions # Try to extract nginx pidfile PID=$(cat /etc/nginx/nginx.conf | grep -Ev '^s*#' | awk 'BEGIN { RS="[;{}]" } { if ($1 == "pid") print $2 }' | head -n1) if [ -z "$PID" ]; then PID=/run/nginx.pid fi if [ -n "$ULIMIT" ]; then # Set ulimit if it is set in /etc/default/nginx ulimit $ULIMIT fi start_nginx() { # Start the daemon/service # # Returns: # 0 if daemon has been started # 1 if daemon was already running # 2 if daemon could not be started start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON --test > /dev/null || return 1 start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON -- $DAEMON_OPTS 2>/dev/null || return 2 } test_config() { # Test the nginx configuration $DAEMON -t $DAEMON_OPTS >/dev/null 2>&1 } stop_nginx() { # Stops the daemon/service # # Return # 0 if daemon has been stopped # 1 if daemon was already stopped # 2 if daemon could not be stopped # other if a failure occurred start-stop-daemon --stop --quiet --retry=$STOP_SCHEDULE --pidfile $PID --name $NAME RETVAL="$?" sleep 1 return "$RETVAL" } reload_nginx() { # Function that sends a SIGHUP to the daemon/service start-stop-daemon --stop --signal HUP --quiet --pidfile $PID --name $NAME return 0 } rotate_logs() { # Rotate log files start-stop-daemon --stop --signal USR1 --quiet --pidfile $PID --name $NAME return 0 } upgrade_nginx() { # Online upgrade nginx executable # http://nginx.org/en/docs/control.html # # Return # 0 if nginx has been successfully upgraded # 1 if nginx is not running # 2 if the pid files were not created on time # 3 if the old master could not be killed if start-stop-daemon --stop --signal USR2 --quiet --pidfile $PID --name $NAME; then # Wait for both old and new master to write their pid file while [ ! -s "${PID}.oldbin" ] || [ ! -s "${PID}" ]; do cnt=`expr $cnt + 1` if [ $cnt -gt 10 ]; then return 2 fi sleep 1 done # Everything is ready, gracefully stop the old master if start-stop-daemon --stop --signal QUIT --quiet --pidfile "${PID}.oldbin" --name $NAME; then return 0 else return 3 fi else return 1 fi } case "$1" in start) log_daemon_msg "Starting $DESC" "$NAME" start_nginx case "$?" in 0|1) log_end_msg 0 ;; 2) log_end_msg 1 ;; esac ;; stop) log_daemon_msg "Stopping $DESC" "$NAME" stop_nginx case "$?" in 0|1) log_end_msg 0 ;; 2) log_end_msg 1 ;; esac ;; restart) log_daemon_msg "Restarting $DESC" "$NAME" # Check configuration before stopping nginx if ! test_config; then log_end_msg 1 # Configuration error exit $? fi stop_nginx case "$?" in 0|1) start_nginx case "$?" in 0) log_end_msg 0 ;; 1) log_end_msg 1 ;; # Old process is still running *) log_end_msg 1 ;; # Failed to start esac ;; *) # Failed to stop log_end_msg 1 ;; esac ;; reload|force-reload) log_daemon_msg "Reloading $DESC configuration" "$NAME" # Check configuration before stopping nginx # # This is not entirely correct since the on-disk nginx binary # may differ from the in-memory one, but that's not common. # We prefer to check the configuration and return an error # to the administrator. if ! test_config; then log_end_msg 1 # Configuration error exit $? fi reload_nginx log_end_msg $? ;; configtest|testconfig) log_daemon_msg "Testing $DESC configuration" test_config log_end_msg $? ;; status) status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $? ;; upgrade) log_daemon_msg "Upgrading binary" "$NAME" upgrade_nginx log_end_msg $? ;; rotate) log_daemon_msg "Re-opening $DESC log files" "$NAME" rotate_logs log_end_msg $? ;; *) echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}" >&2 exit 3 ;; esac
还有一个好处，创建好的文件由于放在/usr/sbin目录下，所以能直接在终端中使用nginx命令而无需指定路径。
二、通过源码包编译安装
这种方式可以自定安装指定的模块以及最新的版本。方式更灵活。
官方下载页面：http://nginx.org/en/download.html
configure配置文件详解：http://nginx.org/en/docs/configure.html
安装gcc g++的依赖库
sudo apt-get install build-essential sudo apt-get install libtool
安装pcre依赖库（http://www.pcre.org/）
sudo apt-get update sudo apt-get install libpcre3 libpcre3-dev
安装zlib依赖库（http://www.zlib.net）
sudo apt-get install zlib1g-dev
安装SSL依赖库（16.04默认已经安装了）
sudo apt-get install openssl
安装Nginx
#下载最新版本： wget http://nginx.org/download/nginx-1.13.6.tar.gz #解压： tar -zxvf nginx-1.13.6.tar.gz #进入解压目录： cd nginx-1.13.6 #配置： ./configure --prefix=/usr/local/nginx #编译： make #安装： sudo make install #启动： sudo /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf 注意：-c 指定配置文件的路径，不加的话，nginx会自动加载默认路径的配置文件，可以通过-h查看帮助命令。 #查看进程： ps -ef | grep nginx
配置软链接
sudo ln -s /usr/local/nginx/sbin/nginx /usr/bin/nginx
现在就可以不用路径直接输入nginx启动。
配置开机启动服务
在/etc/init.d/下创建nginx文件，sudo vim /etc/init.d/nginx，内容如下：
#!/bin/sh ### BEGIN INIT INFO # Provides: nginx # Required-Start: $local_fs $remote_fs $network $syslog $named # Required-Stop: $local_fs $remote_fs $network $syslog $named # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: starts the nginx web server # Description: starts nginx using start-stop-daemon ### END INIT INFO PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin DAEMON=/usr/local/nginx/sbin/nginx NAME=nginx DESC=nginx # Include nginx defaults if available if [ -r /etc/default/nginx ]; then . /etc/default/nginx fi STOP_SCHEDULE="${STOP_SCHEDULE:-QUIT/5/TERM/5/KILL/5}" test -x $DAEMON || exit 0 . /lib/init/vars.sh . /lib/lsb/init-functions # Try to extract nginx pidfile PID=$(cat /usr/local/nginx/conf/nginx.conf | grep -Ev '^s*#' | awk 'BEGIN { RS="[;{}]" } { if ($1 == "pid") print $2 }' | head -n1) if [ -z "$PID" ]; then PID=/run/nginx.pid fi if [ -n "$ULIMIT" ]; then # Set ulimit if it is set in /etc/default/nginx ulimit $ULIMIT fi start_nginx() { # Start the daemon/service # # Returns: # 0 if daemon has been started # 1 if daemon was already running # 2 if daemon could not be started start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON --test > /dev/null || return 1 start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON -- $DAEMON_OPTS 2>/dev/null || return 2 } test_config() { # Test the nginx configuration $DAEMON -t $DAEMON_OPTS >/dev/null 2>&1 } stop_nginx() { # Stops the daemon/service # # Return # 0 if daemon has been stopped # 1 if daemon was already stopped # 2 if daemon could not be stopped # other if a failure occurred start-stop-daemon --stop --quiet --retry=$STOP_SCHEDULE --pidfile $PID --name $NAME RETVAL="$?" sleep 1 return "$RETVAL" } reload_nginx() { # Function that sends a SIGHUP to the daemon/service start-stop-daemon --stop --signal HUP --quiet --pidfile $PID --name $NAME return 0 } rotate_logs() { # Rotate log files start-stop-daemon --stop --signal USR1 --quiet --pidfile $PID --name $NAME return 0 } upgrade_nginx() { # Online upgrade nginx executable # http://nginx.org/en/docs/control.html # # Return # 0 if nginx has been successfully upgraded # 1 if nginx is not running # 2 if the pid files were not created on time # 3 if the old master could not be killed if start-stop-daemon --stop --signal USR2 --quiet --pidfile $PID --name $NAME; then # Wait for both old and new master to write their pid file while [ ! -s "${PID}.oldbin" ] || [ ! -s "${PID}" ]; do cnt=`expr $cnt + 1` if [ $cnt -gt 10 ]; then return 2 fi sleep 1 done # Everything is ready, gracefully stop the old master if start-stop-daemon --stop --signal QUIT --quiet --pidfile "${PID}.oldbin" --name $NAME; then return 0 else return 3 fi else return 1 fi } case "$1" in start) log_daemon_msg "Starting $DESC" "$NAME" start_nginx case "$?" in 0|1) log_end_msg 0 ;; 2) log_end_msg 1 ;; esac ;; stop) log_daemon_msg "Stopping $DESC" "$NAME" stop_nginx case "$?" in 0|1) log_end_msg 0 ;; 2) log_end_msg 1 ;; esac ;; restart) log_daemon_msg "Restarting $DESC" "$NAME" # Check configuration before stopping nginx if ! test_config; then log_end_msg 1 # Configuration error exit $? fi stop_nginx case "$?" in 0|1) start_nginx case "$?" in 0) log_end_msg 0 ;; 1) log_end_msg 1 ;; # Old process is still running *) log_end_msg 1 ;; # Failed to start esac ;; *) # Failed to stop log_end_msg 1 ;; esac ;; reload|force-reload) log_daemon_msg "Reloading $DESC configuration" "$NAME" # Check configuration before stopping nginx # # This is not entirely correct since the on-disk nginx binary # may differ from the in-memory one, but that's not common. # We prefer to check the configuration and return an error # to the administrator. if ! test_config; then log_end_msg 1 # Configuration error exit $? fi reload_nginx log_end_msg $? ;; configtest|testconfig) log_daemon_msg "Testing $DESC configuration" test_config log_end_msg $? ;; status) status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $? ;; upgrade) log_daemon_msg "Upgrading binary" "$NAME" upgrade_nginx log_end_msg $? ;; rotate) log_daemon_msg "Re-opening $DESC log files" "$NAME" rotate_logs log_end_msg $? ;; *) echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}" >&2 exit 3 ;; esac
#设置服务脚本有执行权限 sudo chmod +x /etc/init.d/nginx #注册服务
cd /etc/init.d/ sudo update-rc.d nginx defaults
现在基本上就可以开机启动了，常用的命令如下：
sudo service nginx {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}
参考：
http://www.cnblogs.com/piscesLoveCc/p/5794926.html（以上部分内容转自此篇文章）