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Shell Programming and Scripting
Sleep 600 or fork/spawn a process or daemon?
Post 302902001 by newbie_01 on Saturday 17th of May 2014 07:18:19 AM
05-17-2014
Sleep 600 or fork/spawn a process or daemon?
Hi,
I have a script that run every 10 minutes, from a specific timeframe of the day, for example 0500 - 1900.
The script is some sort of checker script for an application log file and check for errors and email us if there is error/s reported in the log.
At the moment, I schedule it to start as a cron at 0500, then inside the script I check for whether the hour is less than 1900 and if it is then I continue running the script. In between checks, I have a sleep 600 = 10 minutes. I want to know if this is the most efficientway of running the script.
I've found some information on fork/spawn and daemon, while they sound like 'cool' terminology
I don't really know the concept on whether they apply to what I want for the script.
Does having the script to be able to run within specific timeframe qualify it to be some sort of a daemon?
Anyway, I know one of the resident gurus will be able to shed some light on my over-analyzing what I am wanting to do.
Thanks in advance.
I have a script that run every 10 minutes, from a specific timeframe of the day, for example 0500 - 1900.
The script is some sort of checker script for an application log file and check for errors and email us if there is error/s reported in the log.
At the moment, I schedule it to start as a cron at 0500, then inside the script I check for whether the hour is less than 1900 and if it is then I continue running the script. In between checks, I have a sleep 600 = 10 minutes. I want to know if this is the most efficientway of running the script.
I've found some information on fork/spawn and daemon, while they sound like 'cool' terminology
I don't really know the concept on whether they apply to what I want for the script. Does having the script to be able to run within specific timeframe qualify it to be some sort of a daemon?
Anyway, I know one of the resident gurus will be able to shed some light on my over-analyzing what I am wanting to do.
Thanks in advance.
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LEARN ABOUT DEBIAN
torrus_monitor
TORRUS_MONITOR(8) torrus TORRUS_MONITOR(8) NAME
monitor - Torrus Monitor. SYNOPSIS
torrus monitor --tree=TREENAME [options...] DESCRIPTION
This command starts the Monitor process for the tree TREENAME. By default it forks into a daemon, sets the log output file to /var/log/torrus/monitor.TREENAME.log, performs one monitoring cycle, and sleeps until the next cycle is scheduled. In daemon mode the log file can be reopened by sending it a SIGHUP signal. OPTIONS
--nodaemon Prevents the process from becoming a daemon and sets the log to STDERR. --runonce Instructs the script to run once and exit. Implies --nodaemon. --delay=N Makes the daemon sleep for N minutes before starting the first cycle. This would happen on the daemon startup and also after each configuration recompilation. For example, when monitor and collector start simultaneously, the collector needs some time to retrieve the data being monitored. --debug Sets the log level to debug. --verbose Sets the debug level to info. --help Displays a help message. FILES
/etc/torrus/conf/torrus-siteconfig.pl Torrus site configuration script. /var/log/torrus/monitor.TREENAME.log Monitor's log for the tree TREENAME. SEE ALSO
torrus(8) NOTES
See more documentation at Torrus home page: http://torrus.org AUTHOR
Stanislav Sinyagin <ssinyagin@yahoo.com> torrus 2.03 2013-07-26 TORRUS_MONITOR(8)