Ubuntu 初始化d:通过“启动mplayer”;启动-停止守护程序";
使用Ubuntu机器,我想像守护进程一样运行MPlayer 在前台,以下配置正是我所需要的:Ubuntu 初始化d:通过“启动mplayer”;启动-停止守护程序";,ubuntu,mplayer,init.d,start-stop-daemon,Ubuntu,Mplayer,Init.d,Start Stop Daemon,使用Ubuntu机器,我想像守护进程一样运行MPlayer 在前台,以下配置正是我所需要的: mplayer-slave-idle-input file=/tmp/mplayercontrol 现在,我写了以下脚本: # /etc/init.d/mplayerd ### BEGIN INIT INFO # Provides: mplayer # Required-Start: $network $syslog # Required-Stop: $network $
mplayer-slave-idle-input file=/tmp/mplayercontrol
现在,我写了以下脚本:
# /etc/init.d/mplayerd
### BEGIN INIT INFO
# Provides: mplayer
# Required-Start: $network $syslog
# Required-Stop: $network $syslog
# Should-Start: $time
# Should-Stop: $time
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start and stop the mplayer daemon
# Description: mplayer daemon
### END INIT INFO
CONTROLFILE="/tmp/mplayercontrol"
DAEMONUSER=jb
DAEMON=/usr/bin/mplayer
DAEMON_ARGS="-slave -idle -input file=$CONTROLFILE"
PIDFILE=/tmp/mplayerd.pid
start() {
echo "Starting mplayer..."
# Prepare fifo file
rm -rf $CONTROLFILE
mkfifo $CONTROLFILE
chmod a+rw $CONTROLFILE
start-stop-daemon --start --quiet --user $DAEMONUSER \
--make-pidfile --pidfile $PIDFILE --background \
--exec /bin/bash -- -c "$DAEMON $DAEMON_ARGS > /tmp/mplayerd.log 2>&1"
echo "Started for user: $DAEMONUSER."
}
stop() {
echo "Stopping mplayer..."
kill -9 `cat $PIDFILE`
# Cleanup fifo file
rm -rf $CONTROLFILE
}
status() {
if [ -z `cat $PIDFILE` ];
then
echo "mplayerd: not running."
else
echo "mplayerd: running."
fi
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload|force-reload)
stop
start
;;
status)
status
;;
*)
echo "Usage: /etc/init.d/mplayerd {start|stop|reload|force-reload|restart|status}"
exit 1
esac
exit 0
但有点不对劲,因为当我尝试启动脚本时,播放器返回一个错误,无法正确启动:
root@jb:/tmp# service mplayerd start
Starting mplayer...
Started for user: jb.
root@jb:/tmp#
root@jb:/tmp# cat /tmp/mplayerd.log
Cannot find HOME directory.
MPlayer 1.0rc4-4.4.3 (C) 2000-2010 MPlayer Team
root@jb:/tmp#
另外,如何在启动时自动运行/etc/inid.d/mplayerd stop
,在关闭时自动运行stop
谢谢 在shell命令之前声明
HOME=/HOME/$DAEMONUSER
start-stop-daemon --start --quiet --user $DAEMONUSER \
--make-pidfile --pidfile $PIDFILE --background \
--exec /bin/bash -- -c "HOME=/home/$DAEMONUSER $DAEMON $DAEMON_ARGS > /tmp/mplayerd.log 2>&1"