Failure of NCL when using nohup

NCL community,

I have a request/challange for you. Can anyone get the following script
to create it's output netCDF file (output.nc), including the global
attributes, when using the nohup command (i.e. nohup ncl exampleScript.ncl):

        begin
             dummyVar = (/ 1,2,3,4,5,6,7,8,9,10 /)
             outfile = addfile("./output.nc","c")
             outfile->DUMVAR = dummyVar

             globalAtt = True
             globalAtt@CREATION_NOTES = "This is only an example to
        show that NCL fails with the nohup command"
             globalAtt@CREATION_DATE = systemfunc("date")
             fileattdef(outfile,globalAtt)

        end

When I use nohup when running the above ncl script I consistently get
the "input in flex scanner failed" message and an output file that does
not contain the global attributes. I admit there is no error message
but the output file is clearly flawed. If I run the script with out
nohup every works fine.

This same problem occurs on different machines and with different
verisons of NCL (i.e. 5.2.1 & 6.0.0) and with numerous different NCL
scripts. I am using NCL installed from binaries on Linux systems (CentOS).

The example above is just a simple script but in more complex scripts
designed to read variables from GRIB/NetCDF files and then write them to
anew netCDF file, a new file is never even created at all!

Thanks,
MJ

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Received on Tue Nov 15 19:45:48 2011