I understand that folks use X$foo becuase if $foo evaluates to -whatever
then there is a *chance* that test will misunderstand.
I gather the reason for using the X trick *and* the quotes is because there
might be some whitespace in there, too.
Given that "case" is a builtin and using "case" instead of "test" is both
faster, easier to read (less clutter), and supports mixed-case easier, I
prefer "case". But I went down this road before.
H
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