Plot file

Usage: plot file file

reads an input graphics file (default extension: .grf) containing list data and plot commands and executes the plot commands in the graphics file. Graphics files cannot be nested. If no output plot file is open when the file command is executed, and if the first plot command in the graphics file does not open an output plot file explicitly, a new Postscript output plot file with the name file.ps is opened implicitly. An implicitly opened output plot file will be closed when the end of the graphics file is reached.