Variable assignment in sh

James B. Byrne byrnejb at
Tue Jan 31 17:56:44 UTC 2017

On Tue, January 31, 2017 12:51, Polytropon wrote:
> On Tue, 31 Jan 2017 12:11:49 -0500, James B. Byrne via
> freebsd-questions wrote:
>> In any case, I now have set the shell in the root crontab file
>> explicitly to /usr/local/bin/bash in hopes of avoiding this problem
>> in the future.
> That _might_ introduce problems in the future when bash is not
> available. My suggestion: Use /bin/sh for scripting except you
> need to rely on a "bash-ism", a feature that bash can provide,
> but sh cannot. However, you can use bash interactively to test
> sh commands, there is "backward compatibility" (bash can be seen
> as a superset of sh).

How would bash become unavailable on this particular system without
someone specifically removing it?

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