Bash and declare

[Neil Watson]

On Wed, Mar 29, 2006 at 11:03:40AM -0400, kburtch-Zd07PnzKK1IAvxtiuMwx3w at public.gmane.org wrote:
>In addition to assigning attributes, declare is used with the nounset option.
> By declaring variables, Bash is able to check for spelling mistakes in
>variables.  Otherwise Bash assumes that a badly spelled variable name is
>really a new variable, something Perl doesn't do.

#!/bin/bash

declare nounset MYVAR=50

MIVAR=42

printf $MYVAR

How does declare prevent mispelled variables?

BTW, when using the Strict module in Perl the variable MIVAR above could
not happen.

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Neil Watson             | Gentoo Linux
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