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Full Discussion: Auto enable/disable cron job
Top Forums Shell Programming and Scripting Auto enable/disable cron job Post 302378998 by dday on Wednesday 9th of December 2009 09:23:13 AM
Old 12-09-2009
Quote:
Originally Posted by steadyonabix
I have seen this implimented with what were called "jobfiles" by the scripts in question. This was to enable testers to turn off each others cron jobs without having the necessary UNIX permissions. It worked like this: -

1) Cron job starts and looks for a "jobfile".
2) If found it looks for a command such as "Skip". This would cause it to clear its own crontab and exit.

Other commands such as "suspend [minutes]" or whatever can be implemented in the same way.

I have done similar to this by having the script that executes from cron check for the existence of a specific file before executing, thus effectively giving you an on/off switch
 

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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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