From: Venks <venkatesh.mantha@...>
Date: 2007-12-06T09:49:26+09:00
Subject: Re: Capturing STDOUT from a system call (POSIX) into an array

Actually, the output is not in a file. The output is generated by a
system call. I somehow think there is something simple in Ruby that I
can use to covert the STDOUT to a 2 dimensional array without actually
using any IO objects.

On Dec 5, 2007 7:39 PM, Ken Bloom <kbloom@gmail.com> wrote:
>
> On Wed, 05 Dec 2007 18:57:51 -0500, Venks wrote:
>
> > What's the best way to capture STDOUT into an Array? I looked at popen3,
> > open4, systemu but couldn't figure out how to do this.
> >
> > In short, I want to execute a system call like "ls -l" and capture it
> > into an array. Of course, "ls -l" may not have proper delimiter but
> > assume that the delimiter is TAB or COMMA.
> >
> > Thanks,
>
> You can use the IO objects returned by popen3 in any way that you'd use a
> normal file. To get an array of lines, one string per line, use
> #readlines. To parse it as a CSV, for example, the csv library in ruby
> should work with CSV.parse
>
> --Ken
>
> --
> Ken (Chanoch) Bloom. PhD candidate. Linguistic Cognition Laboratory.
> Department of Computer Science. Illinois Institute of Technology.
> http://www.iit.edu/~kbloom1/
>
>