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Re: $? and $! equivalents

From:
N6Ghost
Date:
October 22, 2018 16:17
Subject:
Re: $? and $! equivalents
Message ID:
20181022091658.0000066e@gmail.com
On Fri, 14 Sep 2018 18:15:21 -0400
Brandon Allbery <allbery.b@gmail.com> wrote:

> Magic variables make multiple threads impossible, which is why perl 5
> is stuck with ithreads: what happens if two threads each "run"
> something at around the same time?
> 
> In Perl 6, you have a Proc object for each subprocess, and can query
> it for its status and/or result code; for things like sub run, the
> Proc should be the return value.
> 
> On Fri, Sep 14, 2018 at 6:08 PM Parrot Raiser <1parrota@gmail.com>
> wrote:
> 
> > This is probably going to be a forehead-slapper, but I can't find a
> > reference in either perlintro.com or http://docs.perl6.org/
> > (5to6-perlfunc or top-down)  for the equivalents of $? and $! in
> > P6.What are they?
> >
> > I want to be able to "run" or "shell" programs, then examine return
> > codes and errors. (The immediate case is to see if a program name is
> > already in use by running  "which $progname". )
> >  
> 
> 

this is very good to know. 



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