## NAME

g.gui

## DESCRIPTION

This program allows user to start a selected graphical user interface (GUI) from the command line prompt.

Currently three different GUIs are supported:

- tcltk - Current Tcl/Tk based GUI aka the gis.m GIS Manager
- oldtcltk - Old Tcl/Tk based GUI aka the d.m Display Manager
- wxpython - New wxPython based GUI aka wxGUI

If the -u update flag is given or the g.gisenv `GRASS_GUI` variable is missing, then the `GRASS_GUI` variable is permanently changed and the selected GUI will be used as the default UI from then on.

## NOTES

Valid values for GRASS_GUI are `text`, `tcltk`, `oldtcltk`, and `wxpython`. g.gisenv variables are stored in the user's home directory in a hidden file called "`.grassrc6`". They are not shell environment variables and the "rc" file is not a classic UNIX run command file, it just contains persistent GRASS variables and is not executed.

## SEE ALSO

wxPython based new generation GUI, wxGUI wiki-page
Tcl/Tk based GIS Manager (gis.m),
Tcl/Tk based Display Manager (d.m),
g.gisenv, GRASS variables list

## AUTHORS

Martin Landa, FBK-irst, Trento, Italy
Hamish Bowman, Otago University, Dunedin, New Zealand (fine tuning)

$Date: 2011-11-08 12:29:50 +0100 (Tue, 08 Nov 2011) $

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