04-22-2014
When I've come up with a different behaviour in script vs. cronjob execution, it has turned out to be probably because of one these (presuming you are in the same machine):
- user executing the cron task is different from the one used for testing.
- user is the same for cron and testing BUT it's using different environments.
Logging with "su" instead of "su -" it does not load the user's environment. So when running cron, the system executes the script loading the user's environment, of course. Then if testing when same user but different environment, there are many chances that the script is not going to behave in the same way or in the way expected.
Alternatevely, you may have logged in using a non-interactive shell like ssh to test the script, and then the script run using the local environment.
So how do you log in in the system when testing the script?
K.
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LEARN ABOUT DEBIAN
apticron
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)