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Top Forums UNIX for Dummies Questions & Answers Can cron be modified via a script? Post 302909042 by rbatte1 on Monday 14th of July 2014 05:24:19 AM
Old 07-14-2014
Do you mean that you are replacing the /var/spool/cron/crontabs contents directly without restarting crond or leaving the definitions alone and are switching in/out your script for a dummy job when you don't want it run?

If it's the former, I would be concerned that cron will only read the files when it starts up unless it is signaled to do so.

Does your solution work? Can you confirm what you are doing for others who may find this thread in future.


Thanks,
Robin
 

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apticron(1)						      General Commands Manual						       apticron(1)

NAME
apticron - Generate a mail listing packages which are pending an upgrade SYNOPSIS
apticron [--cron] DESCRIPTION
apticron is a shell script which generates a mail with a list of all packages currently pending an upgrade, as well as summary of changes - using apt-listchanges - to a configurable Email address. apticron is mainly intended for automatic notification of pending security updates but can also be used in many other situations where timely updates are necessary. The --cron option is only meant to be used when invoked by cron in order to run no more than once a day. FILES
/etc/apticron/apticron.conf Configuration file, Email address to mail and profile for use with apt-listchanges are configurable. /etc/cron.d/apticron Cron job for executing apticron daily. /etc/cron.daily/apticron Fallback cron script for executing apticron (if no crond running or system down at designated time). /var/lib/misc/apticron.cron Time stamp file used by apticron when invoked with --cron option. SEE ALSO
apt-get(8), apt-listchanges(1), cron(8) AUTHOR
Apticron was initially developed by Colm MacCarthaigh <colm.maccarthaigh@heanet.ie> with contributions from Marc Sherman <msherman@projec- tile.ca>. Since 2006 it is maintained and improved by Tiago Bortoletto Vaz <tiago@debian.org>. apticron(1)
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