This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU GPL'ed), image processing and geographic information system (GIS)

NOTE: Some modules listed here are not yet available in GRASS 5.x.

GRASS development has been conducted since 1995 at USACERL, the GRASS Development Team at Baylor University, Texas and ITC-Irst (SSI/MPA), Trento, Italy are the official sites for all new research, development, testing, distribution, training, and support.

One line command reference - overview

Reference Manual Sections

GRASS startup
Drivers (CELL, PNG, HTMLMAP, XDRIVER)
Data Import into GRASS
Data Export from GRASS
Supported projections in GRASS 5.0
GRASS 5 Environment variables
GRASS tips 'n tricks

Modules section:
Database Commands
Display Commands
General Commands
Grid 3D Commands
Imagery Commands - Overview
Miscellaneous Commands
Models: simulation models
Paint Commands
Photo Commands
PostScript Commands
Raster Commands
Shell Scripts
Sites Commands
Vector Commands

nviz visualization tool tutorial

Commands Missing a Manual Page

• the module name

• a brief description

• a synopsis of files associated with the module

• a full description of the module's capabilities and uses

• a summary of the command-line operations associated with the module

• a list of associated or related module(s)

• a list of references concerning the method (if required)

• a list of module's authors

Throughout the manual, module input to be explicitly entered by the user is printed in bold text. User-specified input (i.e., variables set by the user) is set in italic type. Boxed text shows information output to the user's terminal screen.

GRASS U.S.A. Site - GRASS Europe Site
Email the GRASS Research Group at: grass@baylor.edu
WWW Pages maintained by Lisa Zygo and Markus Neteler
with updates from Helena Mitasova and various contributors