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

### 9.3.42: ``show`'

    `show ...'

Show some information by printing it to standard output.

- ``show all`' Show lots of information about plot.

- ``show axes`' Show information about axes.

- ``show color`' Show the current pen color used for lines and text. This is not to be confused with image color, which is independent.

- ``show colornames`' Show all colors known by name, as defined by ``read colornames`' command and also the builtin colors defined automatically (e.g. ``white`', ``black`', ``red`', etc), (see Read Colornames).

- ``show columns`' Show x, y, z, u, v column data.

- ``show columns statistics`' Show means, std devs, etc for columns.

- ``show flags`' Show values of all flags. (Developers only.)

- ``show grid`' Show an indication of the grid data (used for contouring).

- ``show grid mask`' Show 1 if grid data are valid or 0 if contours will not extend into this region.

- ``show image`' Show information about image, such as a histogram of values, and, if the image is small enough, the actual data.

- ``show license`' Show the license for Gri, which outlines how users are allowed to share it freely.

- ``show misc`' Show miscellaneous information about the plot, the data, etc.

- ``show next line`' Show next line of data-file.

- ``show synonyms`' Show values of all synonyms, whether built-in or user-defined.

- ``show stopwatch`' Show elapsed time since first call to this command in the given Gri program.

- ``show time`' Show the current time.

- ``show traceback`' Show traceback (i.e., the tree of commands being done at this instant).

- ``show variables`' Show values of all variables, whether built-in or user-defined.

- ``show .value.`' Show value of indicated variable.

- ``show {rpn ...}`' Show result of computing indicated expression.

- ``show "some text"`' Print the indicated string. You may use a double-slash to prevent Gri from substituting synonym values; thus it is common to do e.g.

      \var = "Temperature"
      show "Plotting \\var = 'var'"

  which will produce the output line

      Plotting \\var = 'Temperature'

- ``show "time=" .time. "; depth=" .depth.`' Print strings and values as indicated. If the last item is ellipses (three dots with no spaces between them), then no newline is printed; this makes the next ``show`' statement print on the same line.

  To get a newline in a printed string, use the three-character glyph ``\<<`', and to get a horizontal tab, use ``\>>`', as in the examples below

      \a = "HI"
      show "\\a=\a"
      system echo -e "a\\nb"
      show "first line\<<second line"
      show "first line\<<\>>(tabbed) second line"
      show "first line\<<\>>(tabbed) second line"