<p>Think I am close, got a parse error message.<br>
The line that the computer accepted was: perl acv2gimp.txt pscurve.acv > gimpcurve.txt.<br>
used the txt for the gimp file, because the GIMP curves I downloaded from the internet that seem to work. had the .txt extension. And, the computer would not recognize the acv2gimp without the .txt.</p>