[GRASS-user] Clip/Extract Rasters using a vector

Andrew wrote:

Here is the error:
GRASS 6.4.0RC6 (MacrophytesGIS):~/grass/MacrophytesGIS/PERMANENT >

..

natemp20092010=mynatempnewrast + 0 | r.mapcalc

..

bash: +: command not foundsyntax error, unexpected $end,
expecting NAME or STRING
Parse error

you need an echo:

  GRASS> echo "natemp20092010=mynatempnewrast + 0" | r.mapcalc

less awkward would be:

  GRASS> r.mapcalc "natemp20092010 = mynatempnewrast + 0"

(although I'm not really sure what the point of the +0 is)

in GRASS 7 you'll need a space around the "=", may as well get
in the habit of doing that now.

Hamish