[GRASS-user] where is grass looking for the input tif - r.viewshed run from bash script

[karsten]

For reference for other beginners here:
I did not import the file nor link it externally, thus that step was
missing. 
I got it to work and the updated script is:
-------------

export GRASS_MESSAGE_FORMAT=plain

r.in.gdal input="/var/www/mapdata/dem30m.tif" output=digim

g.region raster=digim

r.viewshed -b input=digim output=vis1.tif
coordinates=1127369.7301780644,6268333.160068306 observer_elevation=120
max_distance=1800 memory=500

----------------
However the last step failed in Grass 7.2.2 on ubuntu Xenial, thus I needed
to inmstall an older version, and in Grass 7.0.3 it is working fine.

Cheers
Karsten


-----Original Message-----
From: karsten [mailto:karsten at terragis.net] 
Sent: Mittwoch, 1. November 2017 20:02
To: 'grass-user at lists.osgeo.org'
Subject: where is grass looking for the input tif - r.viewshed run from bash
script

I am trying to run r.viewshed from a bash script on ubuntu following
instruction on https://grasswiki.osgeo.org/wiki/GRASS_and_Shell "GRASS Batch
jobs". I got an error that my input tif file is not found. 
I tried specifying the full path to file but get then the Error Illegal
filename
</var/www/mapdata/ilpoe/layers/results/dem30m_cut_852af91d4fe5fd938fa57893e5
991dfe.tif> Character </> not allowed.
My 3 line script is below:
--------------
export GRASS_MESSAGE_FORMAT=plain
g.region n=6446299.8941608080640435 s=5942051.4022588636726141
w=779220.9745125266490504 e=1224529.8597663976252079 res=30 r.viewshed -b
input="/var/www/results/dem30m.tif" output="/var/www/results/vis.tif"
coordinates=1127369.7301780644,6268333.160068306 observer_elevation=120
max_distance=1800 memory=2000
------------

Where is Grass looking for the input tif and how do I need to specify that ?

Thanks 

Karsten Vennemann
Terra GIS LTD