Ah ok, makes sense.

Dean

On Fri, 18 Apr 1997, Marc Slemko wrote:

> If anyone does something in perl that uses both perl's output and
> something that exec(3)s something, the perl output will not necessarily be
> flushed before the other output happens.
> 
> eg.
> 
>       #!/usr/local/bin/crey
>       print "Content-type: text/plain\n\n";
>       system("/bin/ls");
> 
> will fail on many systems because the output from ls happens
> before perl flushes its buffers.  A similar thing happens in C
> on many systems.  On some systems, you will never run into
> this problem.
> 
> On Fri, 18 Apr 1997, Dean Gaudet wrote:
> 
> > Why are we recommending $| = 1 all the time?  I've never had to do this in
> > my CGIs.
> > 
> > Dean
> > 
> > On Fri, 18 Apr 1997, Marc Slemko wrote:
> > > Have you checked the error log?  This is almost certainly a bug in your
> > > CGI script.  Try adding "$| = 1;" near the start of your program and be
> > > sure you correctly output the header.  
> > 
> 
> 

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