gnuplot

A graph plotter that outputs in several formats. More information: http://www.gnuplot.info/.

• Start the interactive graph plotting shell:

gnuplot

• Plot the graph for the specified graph definition file:

gnuplot path/to/definition.plt

• Set the output format by executing a command before loading the definition file:

gnuplot -e "set output "path/to/filename.png" size 1024,768" path/to/definition.plt

• Persist the graph plot preview window after gnuplot exits:

gnuplot --persist path/to/definition.plt