NAME

       g.filename  - Prints GRASS data base file names.

KEYWORDS

       general, map management, scripts

SYNOPSIS

       g.filename
       g.filename --help
       g.filename element=string file=string  [mapset=string]   [--help]  [--verbose]  [--quiet]  [--ui]

   Flags:
       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       element=string [required]
           Name of an element

       file=string [required]
           Name of a database file

       mapset=string
           Name of a mapset (default: current)

DESCRIPTION

       g.filename  is  designed  for  Bourne  shell scripts that need to know the full file name, including it’s
       path, for mapset elements, like raster, vector and site maps, region definitions and imagery groups.

       The list of element names to search for is not fixed; any subdirectory of the mapset directory is a valid
       element name.

       However,   the   user   can   find   the   list   of  standard  GRASS  GIS  element  names  in  the  file
       $GISBASE/etc/element_list. This is the file which g.remove/g.rename/g.copy use to determine  which  files
       need to be deleted/renamed/copied for a given entity type.

OUTPUT

       g.filename writes one line to standard output:
       file=’full_file_pathname’  The output is a /bin/sh command to set the variable specified by the file name
       to the full UNIX path name for the data base file.  This variable may be set in the /bin/sh as follows:
       eval `g.filename element=name mapset=name file=name`

NOTES

       This module generates the filename, but does not care if the file (or mapset or element) exists  or  not.
       This feature allows shell scripts to create new data base files as well as use existing ones.

       If the mapset is the current mapset, g.filename automatically creates the element specified if it doesn’t
       already exist.  This makes it easy to add new files to the data base without having to  worry  about  the
       existence of the required data base directories.  (This program will not create a new mapset, however, if
       that specified does not currently exist.)

       The program exits with a 0 if everything is ok;  it exits with a non-zero value if there is an error,  in
       which case file=’full_file_pathname’ is not output.

SEE ALSO

        g.findfile, g.gisenv

AUTHOR

       Michael Shapiro, U.S.Army Construction Engineering Research Laboratory

SOURCE CODE

       Available at: g.filename source code (history)

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       © 2003-2019 GRASS Development Team, GRASS GIS 7.8.2 Reference Manual