[ale] Bash: How to determine if called from cron?

[Michael Still]

How about setting an environment variable like RUNNING_FROM_CRON=true
in your crontab and checking it in the script?  I don't remember the
specifics of the environment from cron though, but I think if you set
it in cron or on the cron command line (like 45 * * * 7      root 
RUNNING_FROM_CRON=true; /my/command) then it'll be in the process
environment.

On 6/27/05, Christopher Bergeron <christopher at bergeron.com> wrote:
> Does anyone know of an easy way for my script to determine if it's being
> run from cron or from a user shell?
> 
> I have a feeling theres an easy way to do this, but I'm drawing a
> complete blank right now.  I'm looking at my Environment vars, but I'm
> not sure what gets set by Cron when it runs a script.
> 
> Any ideas are much appreciated...
> 
> Kind regards,
> CB
> 
> 
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