Problem with Import[] and math.exe
- To: mathgroup at smc.vnet.net
- Subject: [mg98212] Problem with Import[] and math.exe
- From: andreas.kohlmajer at gmx.de
- Date: Fri, 3 Apr 2009 04:32:25 -0500 (EST)
Hi all!
I spend several hours with a simple issue I don't understand. I would
like to create a daily task on WinXP; I have already shortened my
complex package to a very simple one, but it still doesn't work:
This code works fine in the regular front end:
In[1]:=
ps=$PathnameSeparator;
data=Import[FileNameJoin[{"C:",ps,"Temp",ps,"data.TSV"}]];
Length[data]
Export[FileNameJoin[{"C:",ps,"Temp",ps,"output.txt"}],data]
Pause[2];
Quit[];
Out[3]= 1996
Out[4]= "C:\\Temp\\output.txt"
It also works fine using math.exe or mathkernel.exe by typing in
everything manually. I have created a package c:\temp\test.m
containing the code above.
I can start math.exe and load the package and output.txt is created.
The same happens with mathkernel.exe:
Mathematica 7.0 for Microsoft Windows (32-bit)
Copyright 1988-2009 Wolfram Research, Inc.
In[1]:= Get["c:\\temp\\test.m"]
However, if I try
"C:\Program Files\Wolfram Research\Mathematica\7.0\math.exe" -initfile
c:\temp\test.m
or
"C:\Program Files\Wolfram Research\Mathematica\7.0\mathkernel.exe" -
initfile c:\temp\test.m
(which are my batch commands for the daily task) , I get an error
message:
Mathematica 7.0 for Microsoft Windows (32-bit)
Copyright 1988-2009 Wolfram Research, Inc.
Import::infer: Cannot infer format of file data.TSV.
Output.txt now contains Null. I also tried to give explicit importing
information ("Table", "TSV", "FieldSeparator", encoding information
etc.), but it doesn't work.
I don't understand this. Do I need to load other .m-files (e.g. some
init.m) too?
The rest of my complex package (including SQL communication,
statistical calculations, graphics generation) works fine, but I
cannot load a simple tsv-file.
My system:
$Version = "7.0 for Microsoft Windows (32-bit) (February 18, 2009)"
$OperatingSystem = "Windows"
Are there any good references for notebook automation and evaluation
using scheduled tasks under Windows? Thanks for any help!