fprintf doesn't write "hello" to temporary file

[Aditya Bhagwat]

Dear all,

fileName = sprintf('%s.sh', tmpnam());
fid = fopen(fileName, "w");
fprintf(fid, "hello\n");
fclose(fid);
cat(fileName)

For some reason the file remains empty and no "hello" is present in it. 
Any idea what is happening here?

Regards and many thanks for your help,

Aditya



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> Today's Topics:
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>    1. Installing packages "java" and "jhandles" (Yuri Belenky)
>    2. Re: enabling immediate output behavior (Aditya Bhagwat)
>    3. parcellfun example code snippet? (Michael Creel)
>    4. Re: enabling immediate output behavior (Francesco Potort?)
>    5. plot titles are off of the plot (charles reid)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 23 Oct 2009 07:46:23 +0200
> From: Yuri Belenky <address@hidden>
> Subject: Installing packages "java" and "jhandles"
> To: address@hidden
> Message-ID:
>         <address@hidden>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Trying to install packages "java" and "jhandles" on top of Octave 3.2.2
> running under Windows XP with no success. The Java SDK installed in
> directory "C:\Program Files\Java\jdk1.6.0_16" so I've set respective
> "JAVA_HOME" environment. Also set "JAVA_INCS" variable as "-IC:/Program
> \Files/Java/jdk1.6.0_16/include -IC:/Program
> \Files/Java/jdk1.6.0_16/include/win32" as recommended in some forums. The
> Octave is in "C:\Octave\...". When running "pkg install" command compiler
> reports that Java development kit cannot be found.
> Help is appreciated.
> Yuri
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> ------------------------------
>
> Message: 2
> Date: Fri, 23 Oct 2009 09:25:37 +0200
> From: Aditya Bhagwat <address@hidden>
> Subject: Re: enabling immediate output behavior
> To: Francesco Potort? <address@hidden>
> Cc: address@hidden
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Dear Francesco,
>
> Thanks for your involvement.
>   
> > > Thanks for your help. Even while using disp(a) as you suggested, in the 
> > > Emacs editor's inferior octave process, all output is kept till the last 
> > > function evaluation has been performed, and only then sent to the 
> > > screen.
> > >     
> > >       
> > Hm.  I run octave as an Emacs inferior process, though in a different
> > op.sys. (Debian).  If I run this:
> >
> > octave> for i=1:50000 i=i+1; if (mod(i,10000)==0) disp(i); endif; endfor
> >
> > I get this:
> >
> >  10000
> >  20000
> >  30000
> >  40000
> >  50000
> > octave> 
> >
> > where the lines are printed at intervals of about one second's time.
> > Would you try my example above and let us know what happens?
> >   
> >     
>
> In my case, for a couple of seconds, nothing happens. Then, the lines 
> are printed all at once in the inferior octave window. I am working on 
> emacs 23.1, which I compiled on Ubuntu 9.04.
>
> Regards,
>
> Aditya
>
>
>
> ------------------------------
>
> Message: 3
> Date: Fri, 23 Oct 2009 10:00:12 +0200
> From: Michael Creel <address@hidden>
> Subject: parcellfun example code snippet?
> To: help <address@hidden>
> Message-ID:
>         <address@hidden>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I have been trying out parcellfun on 3.0.1 and 3.3.50+ and I'm not
> having luck. For example, if I try
> [a b] = parcellfun(2, @sin, {1}, {2}) I expect that a and b should
> hold sin(a) and sin(b). However, they are empty. So a working snippet
> would be welcome to see how this is supposed to go.
> Thanks, Michael
>
>
> ------------------------------
>
> Message: 4
> Date: Fri, 23 Oct 2009 13:24:36 +0200
> From: Francesco Potort? <address@hidden>
> Subject: Re: enabling immediate output behavior
> To: Aditya Bhagwat <address@hidden>
> Cc: address@hidden
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset=utf-8
>
>   
> > In my case, for a couple of seconds, nothing happens. Then, the lines 
> > are printed all at once in the inferior octave window. I am working on 
> > emacs 23.1, which I compiled on Ubuntu 9.04.
> >     
>
> Allright, try this:
>
> octave> more off
> octave> for i=1:20000 i=i+1; if (mod(i,4000)==0) disp(i); endif; endfor
>
> And look at what happens
>
>