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Top Forums Shell Programming and Scripting How to check if script is run via cron or manual=command line? Post 302695171 by methyl on Saturday 1st of September 2012 08:43:45 PM
Old 09-01-2012
Please remember to post what Operating System and version you are running and what Shell you use.

Ignoring the link from @mjf, the simple answer for most Bourne-type Shells is to test whether SDOUT is a terminal or not:

Code:
if [ -t 1 ]
then
        echo "From cron"
else
        echo "Not from cron"
fi

 

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CRON-APT(8)						      System Manager's Manual						       CRON-APT(8)

NAME
cron-apt -- program to update the system using apt-get SYNOPSIS
cron-apt [configfile] DESCRIPTION
This manual page documents briefly the cron-apt command. cron-apt is a program that uses the information in /etc/cron-apt/action.d/ as arguments to apt-get line by line in file order. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. For a complete description, see the Info files. --help Show summary of options. CONFIGURATION
Configuration can be done by editing /etc/cron-apt/config and by adding rules to /etc/cron-apt/action.d/ The variables that you can set in /etc/cron-apt/config is documented in the configuration example in /usr/share/doc/cron-apt/examples/config From version 0.5.0 the optional FILTERCTRLM attribute is deprecated. SEE ALSO
apt-get (1) aptitude (1) AUTHOR
This manual page was written by Ola Lundqvist ola@inguza.com for the Debian GNU/Linux system (but may be used by others). This manual is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. CRON-APT(8)
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