[ferret_users] the length of a string array return from spawn

[David Wang <climater@xxxxxxxxx>]

Hi Ferreters,

I was following Ch7 Sec2.11 (SPAWN command) to get the number of netcdf files in the current directory, so I tried

> yes? let a = {"dummy",SPAWN:"ls m002?.nc"}
> yes? list a
>              VARIABLE : {"dummy",SPAWN:"ls m002?.nc"}
>              SUBSET   : 5 points (X)
>  1   / 1:"dummy"
>  2   / 2:"m002a.nc"
>  3   / 3:"
> m002b.nc"
>  4   / 4:"m002c.nc"
>  5   / 5:"m002d.nc"
> yes? say `a,return=iend`
>  !-> MESSAGE/CONTINUE 2001
> 2001
instead of 5, the last command returns 2001, which is not consistent with what the manual says. is anything wrong or the manual is out-of-date? i'm using the latest version of FERRET and the system is Fedora Core 7.

Thanks,
D.