My opinion remains that writing shell scripts which are not portable are shell scripts which are broken. If you ever find yourself having to use bash-specific features in your shell scripts, maybe you'd better use Perl instead.
At the beginning, people rarely use them. And scripts based on them indeed are not portable enough.
But it's easier writing bash code, and the resulting bash programs are much more readable.
So I think it may have its seat in the near future.
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My opinion remains that writing shell scripts which are not portable are shell scripts which are broken. If you ever find yourself having to use bash-specific features in your shell scripts, maybe you'd better use Perl instead.
At the beginning, people rarely use them. And scripts based on them indeed are not portable enough.
But it's easier writing bash code, and the resulting bash programs are much more readable.
So I think it may have its seat in the near future.