Graphics export
- driver — select a graphics driver
- xend — close a graphics export session
- xinit — open a graphics export session
- xs2bmp — export graphics to BMP
- xs2emf — export graphics to EMF.
- xs2eps — export graphics to EPS
- xs2gif — export graphics to GIF
- xs2jpg — export graphics to JPG
- xs2pdf — export graphics to PDF.
- xs2png — export graphics to PNG
- xs2ppm — export graphics to PPM
- xs2ps — export graphics to PS
- xs2svg — export graphics to SVG