Startup script and cronolog log Segmentation

Http://man.cx/start-stop-daemon (8) http://cronolog.org/usage.html http://book.opensourceproject.org.cn/lamp/ruby/railscook/opensource/0596527314/ I _0596527314_chp_13_sect_6.html
Install cronolog

Cronolog is a simple log splitting plug-in. Common typical applications are splitting a single huge log of apache and saving it by date.
Installation:

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 $ wget 
http://cronolog.org/download/cronolog-1.6.2.tar.gz
$ tar xvzf cronolog-1.6.2.tar.gz
$ cd cronolog-1.6.2
$ ./configure --prefix=/usr/local
$ make
$ sudo make install

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Check where it is installed (which also requires the sudo permission ):
Which cronolog

Simple Test
$ Echo "This is a test." |/usr/bin/cronolog-o/var/log/www/% Y/access. % m-% d-% y. log

"-O" command to create a file without adding an error

OK!
Compile a self-starting program for your web server

Script File cam-hello without extension:

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#! /bin/sh
# example python daemon starter script
# based on skeleton from Debian GNU/Linux
# cliechti@gmx.net
# place the daemon scripts in a folder accessible by root. /usr/local/sbin is a good idea

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON="/usr/local/hello/python_server/HelloServer"
NAME=cam-hello
DESC="cam hello"
CRONOLOG="/usr/local/sbin/cronolog /var/log/www/cam/%Y/access.%m-%d-%y.log"
test -f $DAEMON || exit 0

set -e
export PIDFILE=/var/run/${NAME}.pid
case "$1" in
start)
echo -n "Starting $DESC: "
start-stop-daemon --start --make-pidfile --pidfile ${PIDFILE} --exec "$DAEMON" | $CRONOLOG &
;;
stop)
echo -n "Stopping $DESC: "
start-stop-daemon --stop --pidfile ${PIDFILE} | $CRONOLOG
# \ --exec $DAEMON
echo "$NAME."
if [ -f ${PIDFILE} ]; then
rm ${PIDFILE}
fi
### rest of shutdown ### 
exit 0
;;
#reload)
#
# If the daemon can reload its config files on the fly
# for example by sending it SIGHUP, do it here.
#
# If the daemon responds to changes in its config file
# directly anyway, make this a do-nothing entry.
#
# echo "Reloading $DESC configuration files."
# start-stop-daemon --stop --signal 1 --quiet --pidfile \
# /var/run/$NAME.pid --exec $DAEMON
#;;
restart|force-reload)
#
# If the "reload" option is implemented, move the "force-reload"
# option to the "reload" entry above. If not, "force-reload" is
# just the same as "restart".
#
echo -n "Restarting $DESC: "
start-stop-daemon --stop --pidfile ${PIDFILE} 
# --exec $DAEMON
sleep 1
start-stop-daemon --start --make-pidfile --pidfile ${PIDFILE} --exec $DAEMON | $CRONOLOG &
echo "$NAME."
;;
*)
N=/etc/init.d/$NAME
# echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2
echo "Usage: $N {start|stop|restart|force-reload}" >&2
exit 1
;;
esac

exit 0

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-- Make-pidfile can be used to create a self-Startup File, Which is misled by incomplete programs on the Internet. As a result, the service can only be started and cannot be stopped =!
The python script must be changed to an executable file or cannot be run.
The log file has a buffer that can be written after a certain length. It is speechless (in this experiment, I thought python could not do this ....)
Deploy self-starting Program

Copy to/etc/rc. d/init. d/
Modify the script file chmod 777 cam-hello

Registration:
/Etc/init. d # sudo update-rc.d cam defaults
To delete start/stop links:
Sudo update-rc.d-f cam remove

(Note: The command chkconfig -- add autoruntest to add a service is incorrect. You don't need it!
There is a loop between service apache2 and rsyslog if stopped)

After successful deployment

/etc/init.d/cam-hello start
/etc/init.d/cam-hello restart
/etc/init.d/cam-hello stop