Running PERL script in background

In order to do this, you will need to SSH into the NV box and do the following:


1) Create a directory maybe in your /home directory
2) Do a Chmod 755 on the new directory
3) Place the perl script in that directory and Chmod 755
4) You will need to edit your crontab file so that it will run your script at a certain time and interval.
--The crontab file should be located at this path in the NV /usr/bin/crontab.
--Edit it with your VI editor
--Add something like this to the crontab file:
30 11 * * * /your/directory/whatever.pl

See this url for specific parameters that you can set on the crontab file: http://www.thesitewizard.com/general/set-cron-job.shtml

I hope this helps.

Thanks for your reply Spiderman

I don't want to run my script at a certain time and interval.

I want to run it permanently. I found some information about the way to run script during NAS startup with /etc/rc3.d, /etc/rc0.d and /etc/init.d

I'll look in that direction

Thanks

Hi all

I progressed in my research to run a PERL script as a daemon. So I created a script in inti.d and I'm testing it. It seems to be very simple but it doesn't works !!!

When I run the script below, I have no error and I have message telling the script is running. The pid file is created but when I look for running daemons, I have nothing regarding it!!!

I just want to run a Perl script with a parameter. So maybe I don't use the good value with start-stop-daemon arguments, I don't know !!!

When I try my script, it work fine (/usr/bin/perl -I"/c/webroot/CurrentCostPerl/lib" /c/webroot/CurrentCostPerl/bin/current-cost-reader /dev/ttyUSB0)

I tried to remove the -I argument for the PERL. I used the pragma "use lib" directly in my code. It has no effect. My daemon is not launching !!

Does anyone have an idea. I think it must be a subtle but I tried so many cases !!!

#!/bin/sh

PATH=/usr/sbin:/usr/bin:/sbin:/bin
DESC="Script PERL de monitoring du CurrentCost"
NAME=CurrentCostPerlMonitoring
DAEMON="/c/webroot/CurrentCostPerl/bin/current-cost-reader"
DAEMON_ARGS="/dev/ttyUSB0"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
DAEMON_OPT='-I"/c/webroot/CurrentCostPerl/lib"'

test -f $DAEMON || exit 0

set -e

#
# Function that starts the daemon/service
#
d_start()
{
	start-stop-daemon --start --quiet --background --verbose --make-pidfile --pidfile $PIDFILE --exec /usr/bin/perl -- $DAEMON_OPT --startas $DAEMON $DAEMON_ARGS ||return 1
}

#
#	Function that stops the daemon/service.
#
d_stop()
{
	start-stop-daemon --oknodo --stop --pidfile $PIDFILE --name skynet_perl --retry=TERM/30/KILL/5
}

case "$1" in
  start)
	echo -n "Starting $DESC: "
	d_start
	echo "."
	;;
  stop)
	echo -n "Stopping $DESC: "
	d_stop
	echo "."
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
	exit 1
	;;
esac

exit 0

Thanks

David