[ferret_users] Ferret batch / redirection problem

["Gustafson, William I" <william.gustafson@xxxxxxx>]

Title: Ferret batch / redirection problem

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Hi,

I have been trying to use Ferret in batch mode to download North American Reanalysis Data from NCDC through their DODS server. I have run into an oddity that is making life difficult. Below are two scripts that I run through Ferret with the command "ferret -batch < script_name". The first script works. The second does not. The only difference is the addition of one extra line in the script. From the error (also below), it looks like a line is not being read in properly from the text file and is getting truncated or something like that. Has anybody else seen this behavior and knows what triggers it? Besides using short scripts, is there a work around? The DODS server takes a long time to open the file so issuing a lot of small scripts will substantially increase the time needed for my project.

Thanks,
    Bill


Script 1 (works)------------------------------------------
set data "http://nomads.ncdc.noaa.gov:9091/dods/NCEP_NARR_DAILY/200407/20040701/narr-a_221_20040701_0000_000"
set region/i=252:420/j=65:135
list/form=cdf/file="soilw10_40cm_2004_07.nc"/append soilw10_40cm[l=1:`soilw10_40cm,return=lend`]
list/form=cdf/file="soilw40_100cm_2004_07.nc"/append soilw40_100cm[l=1:`soilw40_100cm,return=lend`]
list/form=cdf/file="soilw100_200cm_2004_07.nc"/append soilw100_200cm[l=1:`soilw100_200cm,return=lend`]
cancel data 1
quit


Script 2 (crahses) ------------------------------------------
set data "http://nomads.ncdc.noaa.gov:9091/dods/NCEP_NARR_DAILY/200407/20040701/narr-a_221_20040701_0000_000"
set region/i=252:420/j=65:135
list/form=cdf/file="soilw0_10cm_2004_07.nc"/append soilw0_10cm[l=1:`soilw0_10cm,return=lend`]
list/form=cdf/file="soilw10_40cm_2004_07.nc"/append soilw10_40cm[l=1:`soilw10_40cm,return=lend`]
list/form=cdf/file="soilw40_100cm_2004_07.nc"/append soilw40_100cm[l=1:`soilw40_100cm,return=lend`]
list/form=cdf/file="soilw100_200cm_2004_07.nc"/append soilw100_200cm[l=1:`soilw100_200cm,return=lend`]
cancel data 1
quit


When the second script is run, Ferret outputs the following: -----------------
        NOAA/PMEL TMAP
        FERRET v5.80  
        Linux(g77) 2.4.20 - 01/03/05
        17-Aug-05 15:55     

yes? 00_200cm,return=lend`]
 **ERROR: command syntax: unpaired quotation marks, grave accent or brackets
yes? cancel data 1
 **ERROR: unknown data set: 1
yes? quit


--------------------------------------------------------------------
William I. Gustafson Jr.
Atmospheric Science and Global Change Division
Pacific Northwest National Laboratory
3200 Q Ave., MSIN K9-30
Richland, WA 99352
(509)372-6110