Re: obtaining process exit code from popen()

[Asko Kauppi <askok@...>]

I remember having done this years back, by appending "&& echo  
<returncode>" to the command itself (and being able to read the output).

<returncode> is whatever $ magic bash uses for showing the return code.

Had similar stuff also for Windows, I can dig up the archives if no- 
one else gives a better solution.

It is a hack.

-asko

John D. Blair kirjoitti 6.6.2009 kello 3:20:

> Has anybody worked out how to obtain the exit code from a sub-process
> invoked using popen()?
>
> It looks to me that the exit code is currently discarded b/c the
> standard __close meta-method only returns a boolean.
>
> Would it be possible to define an alternate close method (i.e.,
> pclose()) which one could use to close a stream opened using popen()  
> and
> obtain the exit code from the sub-process?  Has this already been  
> done?
>
> thanks much,
> John.