[gradsusr] about fprintf command in Ubuntu

[Yared Godine]

Dear all
I tried to write the grads output values into ascii file by using
the fprintf.gs script in ubuntu. 
I tried the following command

Sdfopen file.nc
Set lat 8
Set lon 37
Set t 1 1826 (since the file has 1826 time steps)
fprintf tasmax-273.15  C:\Users\user\Desktop\yared\tmax1986_1990.csv  %g, 12 2

when I run this script, I got the following result:-
                                    Unknown command: fprintf

What may be the error with this script or command?

waiting for your kind reply

thanking you
with best regard

Yared


-- 
********************************** 
Yared Godine Demeke 
Msc. in Meteorology 
Instructor in Faculty of Meteorology and Hydrology 
Water Technology Institute 
Arba Minch University 
P. O. Box 21, Arba Minch, Ethiopia. 
Mobile :-( +251)-916-854-783 
:-( +251)-939-171-133 
Email:- yared.godine at amu.edu.et & yarukidus2002 at gmail.com 
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