Running Gri
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4.3: Viewing Gri Output
Gri does not draw directly on your screen. Instead, it creates a
PostScript file, assuming that you know how to view or print such a
file. If you don't have a PostScript previewer, you might want to get
the Free Software Foundation's `
On a unix system, you may invoke both Gri and the previewer on the same
commandline, e.g., `
Gri PostScript output is standard, and can be viewed with standard
viewers such as ` Gri output files are in the PostScript page description language.
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