In the last episode (Dec 12), Paul Murphy said:
> I am having trouble understanding what is the difference between
> "$variable" and "${variable}".
>
> I have read sh(1) and understand than ${} is a "parameter" and can
> contain more than just a variable, but browsing through /etc/rc I
> see lots of "${variable}" (i.e. "case ${svc_val} in").
>
> Is this just for readability or is there some functional difference?
Mainly readability, but sometimes you need the {}'s to delimit the
variable name: compare
echo texttext${variablehere}texttext
vs.
echo texttext$variableheretexttext
--
Dan Nelson
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