Re: convolutions

[Martin Vaeth <martin@xxxxxxxx>]

Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx> wrote:
> If you really want to replace exactly
> and only the specific references to color variables, you need
> something like Zyx's sed expression.

Or envsubst from gettext.
In fact, envsubst was exactly written for the purpose of
*safely* expanding variables (and *only* that).