Hardcopy: Save a plot to a file for printing
General Form:
hardcopy file plotargs
Just like plot, except that it creates a file called file containing the plot. The file is a postscript image. As an alternative the plot(5) format is available by setting the hcopydevtype variable to plot5, and can be printed by either the plot(1) program or lpr with the -g flag. See also Chapt. 18.6 for more details (color etc.).