Daniel Victoria wrote:
> To get around the ' or " problems when scripting for r.mapcalc I
> prefer to use another syntax construction that goes like this:
>
> echo "river = if(river == $old, $new, null())" | r.mapcalc
>
> That way you evaluate the variables $old and $new before sending it to
> r.mapcalc.
There is no advantage to using the above form. Even if you use:
r.mapcalc "river = if(river == $old, $new, null())"
the variables are still expanded by the shell.
--
Glynn Clements <gl...@gclements.plus.com>
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