Problem with cron jobs

[Cary Lewis]

I have created a small shell script that acts like a network
connectivity watchdog, which checks for a successful ping to the
internet, and if it doesn't work, restarts the machine.

When I attempt to run it from a cron job, the script exits whenever
any of the commands exits with a non zero status, preventing the
script from doing its job.

Has anyone seen this behaviour before?

I have tried wrapping the script in () to run it within a sub-shell,
but to no avail.

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