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Top Forums Shell Programming and Scripting How to check if script is run via cron or manual=command line? Post 302695163 by newbie_01 on Saturday 1st of September 2012 06:54:05 PM
Old 09-01-2012
How to check if script is run via cron or manual=command line?

Hi all,

I have a script that can be run via cron or via the command line.

Is there any way that I can place something on the script to be able to distinguish/differentiate whether the script was run via a user in the command line or whether it was run from the cron?
 

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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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