Alexandre Duret-Lutz <adl@xxxxxxxxxxx> writes:
> years I've been convinced that the only safe way to access
> positional parameters past $9 was to shift them first. I can't
> recall why. I'm wondering whether this is a myth of mine,
It's not a myth. The 7th edition shell behaved that way; it reported
an error if given "${10}". Solaris 10 /bin/sh still acts that way:
$ set 1 2 3 4 5 6 7 8 9 10
$ echo ${10}
bad substitution
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