1general(1)                  GRASS GIS User's Manual                 general(1)
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GRASS GIS 8.2.1 Reference Manual

6       Geographic  Resources  Analysis Support System, commonly referred to as
7       GRASS GIS, is a Geographic Information System (GIS) used for geospatial
8       data  management  and analysis, image processing, graphics/maps produc‐
9       tion, spatial modeling, and visualization. GRASS is currently  used  in
10       academic  and  commercial settings around the world, as well as by many
11       governmental agencies and environmental consulting companies.
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13       This reference manual details the use of modules distributed with  Geo‐
14       graphic  Resources Analysis Support System (GRASS), an open source (GNU
15       GPLed), image processing and geographic information system  (GIS).   Go
16       back to help overview
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18   General commands:
19       g.access                                                     Controls access to the current mapset for other users on the
20                                                                    system.
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22       g.cairocomp                                                  Overlays multiple X Pixmaps.
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24       g.copy                                                       Creates copies of maps and other elements
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26       g.dirseps                                                    Internal GRASS utility for  converting  directory  separator
27                                                                    characters.
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29       g.download.location                                          Download GRASS Location from the web
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31       g.extension.all                                              Rebuilds  or  removes all locally installed GRASS Addons ex‐
32                                                                    tensions.
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34       g.extension                                                  Maintains GRASS Addons extensions in local  GRASS  installa‐
35                                                                    tion.
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37       g.filename                                                   Prints GRASS data base file names.
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39       g.findetc                                                    Searches for GRASS support files.
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41       g.findfile                                                   Searches  for  GRASS  data base files and sets variables for
42                                                                    the shell.
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44       g.gisenv                                                     Outputs and modifies the user’s current GRASS variable  set‐
45                                                                    tings.
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47       g.gui.animation                                              Tool  for  animating a series of raster and vector maps or a
48                                                                    space time raster or vector dataset.
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50       g.gui.datacatalog                                            Tool for browsing, modifying and managing GRASS maps.
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52       g.gui.dbmgr                                                  Launches graphical attribute table manager.
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54       g.gui.gcp                                                    Georectifies  a  map  and  allows  managing  Ground  Control
55                                                                    Points.
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57       g.gui.gmodeler                                               Graphical Modeler.
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59       g.gui                                                        Launches a GRASS graphical user interface (GUI) session.
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61       g.gui.iclass                                                 Tool for supervised classification of imagery data.
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63       g.gui.image2target                                           Georectifies a map and allows managing Ground Control Points
64                                                                    for 3D correction.
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68       g.gui.mapswipe                                               Interactively compares two maps by swiping a visibility bar.
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70       g.gui.photo2image                                            Corrects scanning distortions of a paper photo.
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72       g.gui.psmap                                                  Tool for creating hardcopy map outputs.
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74       g.gui.rdigit                                                 Interactive editing and digitizing of raster maps.
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76       g.gui.rlisetup                                               Configuration tool for r.li modules.
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78       g.gui.timeline                                               Allows comparing temporal datasets by displaying their  tem‐
79                                                                    poral extents in a plot.
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81       g.gui.tplot                                                  Plots the values of temporal datasets.
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83       g.gui.vdigit                                                 Interactive editing and digitization of vector maps.
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85       g.list                                                       Lists  available GRASS data base files of the user-specified
86                                                                    data type optionally using the search pattern.
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88       g.manual                                                     Displays the manual pages of GRASS modules.
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90       g.mapset                                                     Changes/reports current mapset.
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92       g.mapsets                                                    Modifies/prints the user’s current mapset search path.
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94       g.message                                                    Prints a message, warning, progress info, or fatal error  in
95                                                                    the GRASS way.
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97       g.mkfontcap                                                  Generates  the  font  configuration file by scanning various
98                                                                    directories for fonts.
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100       g.parser                                                     Provides automated parser, GUI, and help support  for  GRASS
101                                                                    scipts.
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103       g.pnmcomp                                                    Overlays multiple PPM image files.
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105       g.ppmtopng                                                   Converts between PPM/PGM and PNG image formats.
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107       g.proj                                                       Prints  or  modifies  GRASS projection information files (in
108                                                                    various co-ordinate system descriptions).
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110       g.region                                                     Manages the boundary definitions for the geographic region.
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112       g.remove                                                     Removes data base element  files  from  the  user’s  current
113                                                                    mapset using the search pattern.
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115       g.rename                                                     Renames  data  base  element  files  in  the  user’s current
116                                                                    mapset.
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118       g.search.modules                                             Search in GRASS modules using keywords
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120       g.tempfile                                                   Creates a temporary file and prints it’s file name.
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122       g.version                                                    Displays GRASS GIS version info.
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125       Main index | Topics index | Keywords index | Graphical index | Full in‐
126       dex
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128       © 2003-2023 GRASS Development Team, GRASS GIS 8.2.1 Reference Manual
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132GRASS 8.2.1                                                         general(1)
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