Pipes and STDERR

[James Smith]

Hello everyone,

I would like to be able to assign my pipe to a variable, whilst still
being able to capture STDERR; i'm sure this is possible but can't think
how to do it..

This is the code for the pipe:

@pipe = IO.popen("ruby userFile/file.rb", "r+")

I am on windows and have tried to use the systemu library to no avail..

any ideas?

 

[Robert Klemme]

I would like to be able to assign my pipe to a variable, whilst still
being able to capture STDERR; i'm sure this is possible but can't think
how to do it..

What exactly do you mean? Why is the pipe and stderr related? Are you
talking about stderr of the Ruby process or of some child process?

Regards

robert

 

[James Smith]

What exactly do you mean? Why is the pipe and stderr related? Are you
talking about stderr of the Ruby process or of some child process?

Sorry, not very well explained.. i need to capture stderr of the ruby
process and write it into the pipe

 

[Robert Klemme]

Sorry, not very well explained.. i need to capture stderr of the ruby
process and write it into the pipe

Ah! Then I'd try this:

STDERR.reopen(pipe)

http://www.ruby-doc.org/core/classes/IO.html#M002301

Regards

robert