Gri: `sleep' command

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 | ### 9.3.44: ``sleep`'
    `sleep .sec.'
Cause Gri to sleep for the indicated number of seconds, which should be a positive integer. This command is ignored if ``.sec.`' is zero or negative, and the value of ``.sec.`' is first rounded to the nearest integer. Normally, this command is used only by the developer, as a way to slow down Gri execution, to allow easier monitoring for debugging purposes. Beware: it is tricky to kill a sleeping job!