[GRASSLIST:10821] v.in.ascii error

[Pierluig De Rosa]

Dear GRASS users,

I need to import an ascii file into a point vector file, and I'm using 
v.in.ascii command.
 My ascii file have three columns (x coordinates, y coordinates, ppm value) 
with fields separator "|" (pipe).
the string command I used is:

v.in.ascii input=/home/pierluigi/Desktop/zinc output=zinc format=point fs=| 
'columns='\''x double precision, y double precision, ppm double 
precision'\''' x=1 y=2 z=0 cat=0

but I have this error

DBMI-DBF driver error:
SQL parser error in statement:
create table zinc ( cat integer, 'x double precision, y double precision, ppm 
double precision' )
Error in db_execute_immediate()


GRASS_INFO_ERROR(5553,1): Cannot create table: create table zinc ( cat 
integer, 'x double precision, y double precision, ppm double precision' )

Can anyone tell me why I find this driver DBF error??
Thanks
Pierluigi

-- 

Pierluigi De Rosa

Department of Enviromental & Civil engineering 
Faculty of Engineering 
Perugia (Italy)