There are two types of variables:
Use: g.gisenv set=VARIABLE=VALUE
It looks unusual with two equals signs, but g.gisenv does dual duty for getting and setting GRASS variables.
If the user just specifies a variable name, it defaults to "get" mode. Example:
GRASS ~> g.gisenv GRASS_GUI
text
GISBASE
directory where GRASS lives
GISRC
name of .grassrc6 file
GRASS_ADDON_PATH
[grass5] startup script
allows to specify additional paths to local GRASS modules extra to standard distribution
GRASS_ANOTHER_BUTTON
[various modules]
If the environment variable GRASS_ANOTHER_BUTTON exists,
the mouse button setting will be changed for two-button mice.
GRASS_BACKGROUNDCOLOR
[PNGdriver]
defines the background color of the image created by the PNG driver
GRASS_ERROR_MAIL
set to any value to send user mail on an error or warning that
happens while stderr is being redirected.
GRASS_GNUPLOT
[m.svfit, s.probplt, s.sv]
program to use for plotting "gnuplot" data
GRASS_HEIGHT
[d.mon]
defines the height of GRASS monitor, see also GRASS_WIDTH
GRASS_HTML_BROWSER
[init.sh, d.m]
defines name of HTML browser
GRASS_INT_ZLIB
[libgis]
If the environment variable GRASS_INT_ZLIB exists, new compressed
rasters will be compressed using zlib instead of RLE compression. Such
rasters will have a "compressed" value of 2 in the cellhd file.
Obviously, decompression is controlled by the raster's "compressed"
value, not the environment variable.
GRASS_MESSAGE_FORMAT
[various modules]
Maybe set to either "standard" or "gui" (normally GRASS takes care)
GRASS_PAGER
[various modules]
Maybe set to either "less" or "more"
GRASS_PERL
set perl with path
GRASS_PNGFILE
[PNGdriver]
name of PNG output file
GRASS_TCLSH
[nviz]
set tclsh shell name to override 'tclsh'
GRASS_TRANSPARENT
[PNGdriver]
if "TRUE", the image created by the PNG driver will have a transparent background
GRASS_TRUECOLOR
[PNGdriver]
if "TRUE", the PNG driver generates a true-color image
GRASS_UI_TERM
set to any value to use the terminal based parser
GRASS_VERSION
reports the current version number (used by R-stats interface etc);
should not be changed by user
GRASS_WIDTH
[d.mon]
defines the width of GRASS monitor, see also GRASS_HEIGHT
GRASS_WISH
[d.m, nviz]
set wish shell name to override 'wish'
DEBUG
[entire GRASS]
sets level of debug message output (0: no debug messages)
g.gisenv set=DEBUG=0
DM_FORM_MODE
[d.m]
sets default form mode (txt or gui)
g.gisenv set=DM_FORM_MODE=txt
GISDBASE
initial database
GIS_LOCK
lock ID to prevent parallel GRASS use,
process id of the start-up shell script
GRASS_DB_ENCODING
[d.what.vect/forms library]
encoding of query form (utf-8, ascii, iso8859-1, koi8-r)
GRASS_GUI
either "text" or "tcltk" to define non-/graphical startup
LOCATION
full path to location directory
LOCATION_NAME
initial location name
MAPSET
initial mapset
OVERWRITE
[all modules]
toggles map overwrite.
With 0 maps are protected (default),
With 1 maps with identical names will be overwritten.
You can force a protected overwrite by adding "--o" to the command.
e.g.:
g.gisenv set="OVERWRITE=0"
$HOME/.grassrc6
stores the GRASS variables (but not environment variables)
$HOME/GIS_ERROR_LOG
If this file exists then all GRASS error and warning messages are
logged here. Applies to current user. To generate the file, use:
touch $HOME/GIS_ERROR_LOG
$GISBASE/GIS_ERROR_LOG
If this file exists then all GRASS error and warning messages are
logged here. Applies to all users. (proper write permissions must be in place)
Note: Error and warning messages encountered while using the GUI menus are not logged.
Last changed: $Date: 2005/09/23 04:52:24 $