[Haskell-beginners] how to save the GHC errormessages in a file on Windows
fmaste at gmail.com
Thu Apr 28 17:37:38 CEST 2011
If you want all the output (stdout and stderr) to be redirected
together, doing "&>filename" redirects both stdout and stderr.
You can also redirect stderr to stdout by doing "2>&1" and then
redirecting the stdout to the file you need.
On Thu, Apr 28, 2011 at 10:04 AM, Daniel Fischer
<daniel.is.fischer at googlemail.com> wrote:
> On Thursday 28 April 2011 14:31:29, Kees Bleijenberg wrote:
>> When I try in Windows in cmd: ghc --make myprogram.hs > test.txt I only
>> get the first lines in test.txt. The errormessages itself are on the
>> screen, not in test.txt.
>> In test.txt:
>> Resolving dependencies...
>> Configuring ftphs-1.0.7...
>> Preprocessing library ftphs-1.0.7...
>> Preprocessing executables for ftphs-1.0.7...
>> Building ftphs-1.0.7...
>> The errormessages: Could not find module 'Network.FTP.Client'.... and a
>> lot more.
>> How do I 'intercept' these messages?
> The error messages are printed to stderr, while the others are printed to
> stdout. I'm not sure how it works on Windows, but on unix or linux, you'd
> redirect stderr with
> $ command 2> file.txt
> It's worth a try on Windows too, I think.
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