.TH g.extension 1grass "" "GRASS 6.4.2" "Grass User's Manual"
.SH NAME
\fI\fBg.extension\fR\fR  - Tool to maintain GRASS extensions in local GRASS installation.
.br
Downloads, installs extensions from GRASS Addons SVN repository into local GRASS installation or removes installed extensions.
.SH KEYWORDS
general, extensions
.SH SYNOPSIS
\fBg.extension\fR
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\fBg.extension help\fR
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\fBg.extension\fR [-\fBlsu\fR]  [\fBextension\fR=\fIname\fR]   [\fBoperation\fR=\fIname\fR]  \fBsvnurl\fR=\fIurl\fR  [\fBprefix\fR=\fIpath\fR]   [--\fBverbose\fR]  [--\fBquiet\fR] 
.SS Flags:
.IP "\fB-l\fR" 4m
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List available modules in the GRASS Addons SVN repository
.IP "\fB-s\fR" 4m
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Install system-wide (may need system administrator rights)
.IP "\fB-u\fR" 4m
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Install system-wide using sudo
.IP "\fB--verbose\fR" 4m
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Verbose module output
.IP "\fB--quiet\fR" 4m
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Quiet module output
.PP
.SS Parameters:
.IP "\fBextension\fR=\fIname\fR" 4m
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Name of extension to install/remove
.IP "\fBoperation\fR=\fIname\fR" 4m
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Operation to be performed
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Options: \fIadd,remove\fR
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Default: \fIadd\fR
.IP "\fBsvnurl\fR=\fIurl\fR" 4m
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SVN Addons repository URL
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Default: \fIhttp://svn.osgeo.org/grass/grass-addons/grass6\fR
.IP "\fBprefix\fR=\fIpath\fR" 4m
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Prefix where to install extension
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Default: \fI$GRASS_ADDON_PATH\fR
.PP
.SH DESCRIPTION
\fIg.extension\fR downloads and installs extensions from 
GRASS Addons SVN repository into the local GRASS installation.
.PP
Re-running the script on an installed GRASS Addon re-installs
the requested extension which may include updates.
.PP
If your GRASS_ADDON_PATH contains more than one path, the default
action is to use the first directory in the list.
.SH EXAMPLES
Download and install \fIi.landsat.toar\fR into current GRASS installation:
\fC
.DS
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g.extension extension=i.landsat.toar
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.DE
\fR
.SH BUGS
This is a new module and obtaining successful behavior on all platforms
is rather tricky.  Please report any problems to the GRASS bug tracker.
If this automatic build fails, instructions for compiling both the GRASS
source code and GRASS addons by hand can be found in the GRASS wiki.
.SH AUTHOR
Markus Neteler
.PP
\fILast changed: $Date: 2011-11-08 10:42:51 +0100 (Tue, 08 Nov 2011) $\fR
.PP
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© 2003-2011 GRASS Development Team