[Techtalk] bash and sh

[Dan]

I have a question that's more theoretical than practical, but it's
important to me to know.

Many scripts start with #!/bin/sh, but proceed to do things that aren't
compatible with shells like tcsh. Even a normal "if" statement isn't the
same between the two shells.

So the question is: does The Standard require sh to be similar to bash,
or would it be equally correct for sh to be a symbolic link to tcsh or
zsh?

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