How to call gnuplot from CLI and save the output graph to the image file?

Question

I'm writing a batch file which will also generate a gnuplot graph from a dat file.

I wish to call gnuplot from the command line, using the gnuplot "gnu" script I have written, and save the output graph to an image.

Something like:

gnuplot.exe script.gnu > image.png

Any ideas?

Answer 1

Simply putting the following line will make gnuplot to return png-format bytecode. Thus, you can redirect the output to a png-file.

set terminal png