bash - Can't run AWS CLI from CRON (credentials)

itemprop="text">

Trying to run a simple AWS CLI backup
script. It loops through lines in an include file, backs those paths up to S3, and dumps
output to a log file. When I run this command directly, it runs without any error. When
I run it through CRON I get an "Unable to locate credentials" error in my output
log.

The shell
script:

AWS_CONFIG_FILE="~/.aws/config"

while
            read p; do
 /usr/local/bin/aws s3 cp $p s3://PATH/TO/BUCKET --recursive
            >> /PATH/TO/LOG 2>&1
done
            

I
only added the line to the config file after I started seeing the error, thinking this
might fix it (even though I'm pretty sure that's where AWS looks by default).

Shell script is running as root. I
can see the AWS config file at the specified location. And it all looks good to me (like
I said, it runs fine outside of CRON).

class="post-text" itemprop="text">

class="normal">Answer

If it
works when you run it directly but not from cron there is probably something different
in the environment. You can save your environment interactively by
doing

set | sort >
            env.interactive

And do
the same thing in your
script

set | sort >
            /tmp/env.cron

And then
diff /tmp/env.cron env.interactive and see what matters. Things
like PATH are the most likely culprits.