[GRASSLIST:7481] Re: need help in concatenating commands

[Markus Neteler]

On Wed, Jul 06, 2005 at 04:38:52PM +0200, Massimiliano Cannata wrote:
> Hello,
> I just need help in concatenating commands...
> I build a command that, given a East and North coordinate scan a raster 
> finding the nearest cell with value majon than a treshold...
> > r.nearest.coor input=accum100a threshold=500 radius=20 
> easting=692019.11712163 northing=119228.853597
> this is the output of the command....
> > easting=690796.625000 northing=119081.002604
> I want now call the r.watershed.outlet.... concatenating this output...
> > r.water.outlet drainage=drainage100 basin=mybasin (easting=...... 
> northing=........)
> 
> if I run:
> > r.nearest.coor input=accum100a threshold=500 radius=20 
> easting=692019.11712163 northing=119228.853597 | r.water.outlet 
> drainage=drainage100 basin=a7642899097zzoo
> 
> I have the message that r.water.outlet need easting and northing 
> parameters......
> 
> What to do?

Provide easting and northing to r.water.outlet :-)

These are parameters, I don't think that r.water.outlet reads from
stdin (pipe). So you have to slightly modify the last command.

Markus