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A help file is available for nearly all of the 400 GRASS modules in which the command and the syntax are described. For using a module a short help is available using the parameter: `` -help''.
d.rast -help
Detailed descriptions and examples of a module that correspond to the help pages on the GRASS Homepage can be displayed with the command g.manual module name.
g.manual d.rast
Thereby, a browser is started, which displays the helping text. An overall index is also integrated into the help, which is also available at the end of this booklet (see chapter 21).
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