Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.ruby > #2378
| From | Brian Candler <b.candler@pobox.com> |
|---|---|
| Newsgroups | comp.lang.ruby |
| Subject | Re: capture the output of a grandchild |
| Date | 2011-04-06 03:43 -0500 |
| Organization | Service de news de lacave.net |
| Message-ID | <d510d9b58f785d4a93972e4b01a900a8@ruby-forum.com> (permalink) |
| References | <635dc8629fc0d9ff056c619e86ff19fe@ruby-forum.com> |
Chandan Bansal wrote in post #991188:
> I tried using named pipes and `` to capture the output but its not
> working
Show your code. Show what B and C are doing, or write replacements in
ruby to demonstrate.
If you use IO.popen(...) then you will capture stdout of the child; if
that child forks a grandchild, which inherits the same stdout, then you
will capture that as well.
Maybe the output which you're failing to capture is on stderr not
stdout. If so, look at open3.rb in the standard library; or do
IO.popen("/path/to/prog 2>&1") { |io| ... }
--
Posted via http://www.ruby-forum.com/.
Back to comp.lang.ruby | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
capture the output of a grandchild Chandan Bansal <chandan89@hotmail.com> - 2011-04-06 03:35 -0500
Re: capture the output of a grandchild Brian Candler <b.candler@pobox.com> - 2011-04-06 03:43 -0500
Re: capture the output of a grandchild Brian Candler <b.candler@pobox.com> - 2011-04-06 07:33 -0500
Re: capture the output of a grandchild Chandan Bansal <chandan89@hotmail.com> - 2011-04-07 07:09 -0500
Re: capture the output of a grandchild Brian Candler <b.candler@pobox.com> - 2011-04-07 07:24 -0500
Re: capture the output of a grandchild Chandan Bansal <chandan89@hotmail.com> - 2011-04-08 00:40 -0500
Sum of arrays getting slower as size increments Vicente Bosch Campos <vbosch@gmail.com> - 2011-04-08 01:48 -0500
Re: Sum of arrays getting slower as size increments Vicente Bosch Campos <vbosch@gmail.com> - 2011-04-08 01:58 -0500
Re: Sum of arrays getting slower as size increments Jesús Gabriel y Galán <jgabrielygalan@gmail.com> - 2011-04-08 02:00 -0500
Re: Sum of arrays getting slower as size increments Vicente Bosch Campos <vbosch@gmail.com> - 2011-04-08 02:06 -0500
Re: Sum of arrays getting slower as size increments Vicente Bosch Campos <vbosch@gmail.com> - 2011-04-08 02:10 -0500
Re: capture the output of a grandchild Chandan Bansal <chandan89@hotmail.com> - 2011-04-07 06:49 -0500
csiph-web