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

One line command reference - overview

• 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.

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