Chapters: 1: Introduction 2: Simple example 3: Invocation 4: Finer Control 5: X-Y Plots 6: Contour Plots 7: Image Plots 8: Examples 9: Gri Commands 10: Programming 11: Environment 12: Emacs Mode 13: History 14: Installation 15: Gri Bugs 16: Test Suite 17: Gri in Press 18: Acknowledgments 19: License Indices: Concepts Commands Variables | # 11: Environment Gri comes with a few ancillary programs that may be useful. Gri also provides a simple scheme to use other system tools (e.g. ``awk`'). These are discussed here. And speaking of discussing, this chapter ends with a note about a mail-list Gri discussion group. Extras: Extra things provided with Gri Using System Tools: Using Gri with other tools Discussion Group: Gri email list