[GRASS-dev] [GRASS GIS] #3627: i.group: file= parameter for input desired

[GRASS GIS]

#3627: i.group: file= parameter for input desired
--------------------------+-------------------------
  Reporter:  neteler      |      Owner:  grass-dev@…
      Type:  enhancement  |     Status:  new
  Priority:  normal       |  Milestone:  7.6.0
 Component:  Imagery      |    Version:  7.4.0
Resolution:               |   Keywords:  i.group
       CPU:  Unspecified  |   Platform:  All
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Comment (by hellik):

 Replying to [ticket:3627 neteler]:
 > To enter the input to i.group can reach a significant number of map
 names.
 >
 > On Unix like systems backticks can be used to feed in g.list output with
 regex/wildcard search. However, this fails on Windows. Here the file
 parameter would be handy:
 >
 > {{{
 > # r.series example, also works on Windows as no backticks involved
 > g.list rast pattern="tmean.1981_2010.*.avg"
 output=list_tmean_1981_2010.csv
 > r.series file=list_tmean_1981_2010.csv ...
 > }}}
 >
 > Wish: add a "file" parameter to i.group is it exists for r.series and
 other commands.

 for the record, see https://lists.osgeo.org/pipermail/grass-
 user/2018-June/078526.html

 {{{
 not as elegant in linux, but you can do something similar in windows too

 e.g. in the winGRASS command line:

 :\>FOR /F %c in ('g.list "type=raster" "pattern=*2" "mapset=user1"
 "separator=comma"') DO SET RASTER2REMOVE=%c

 C:\>SET RASTER2REMOVE=b172,d172,it172,r172

 C:\>echo %RASTER2REMOVE%
 b172,d172,it172,r172


 C:\>g.remove type=raster name=%RASTER2REMOVE%
 The following data base element files would be deleted:
 raster/b172 at user1
 raster/d172 at user1
 raster/it172 at user1
 raster/r172 at user1
 WARNING: Nothing removed. You must use the force flag (-f) to actually
          remove them. Exiting.
 }}}

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3627#comment:3>
GRASS GIS <https://grass.osgeo.org>