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Re: Piping processes works with 'shell = True' but not otherwise.

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On 29May2013 19:39, Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> wrote:
| Am 27.05.2013 02:14 schrieb Carlos Nepomuceno:
| >pipes usually consumes disk storage at '/tmp'.
| 
| Good that my pipes don't know about that.
| Why should that happen?

It probably doesn't on anything modern. On V7 UNIX at least there
was a kernel notion of the "pipe fs", where pipe storage existed;
usually /tmp; using small real (but unnamed) files is an easy way
to implement them, especially on systems where RAM is very small
and without a paging VM - for example, V7 UNIX ran on PDP-11s amongst
other things. And files need a filesystem.

But even then pipes are still small fixed length buffers; they don't
grow without bound as you might have inferred from the quoted
statement.

Cheers,
-- 
Cameron Simpson <cs@zip.com.au>

ERROR 155 - You can't do that.  - Data General S200 Fortran error code list

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Piping processes works with 'shell = True' but not otherwise. Luca Cerone <luca.cerone@gmail.com> - 2013-05-24 07:04 -0700
  Re: Piping processes works with 'shell = True' but not otherwise. Luca Cerone <luca.cerone@gmail.com> - 2013-05-26 03:31 -0700
  Re: Piping processes works with 'shell = True' but not otherwise. Chris Rebert <clp2@rebertia.com> - 2013-05-26 14:05 -0700
    Re: Piping processes works with 'shell = True' but not otherwise. Luca Cerone <luca.cerone@gmail.com> - 2013-05-26 16:58 -0700
      RE: Piping processes works with 'shell = True' but not otherwise. Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-05-27 03:14 +0300
        Re: Piping processes works with 'shell = True' but not otherwise. Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> - 2013-05-29 19:39 +0200
          RE: Piping processes works with 'shell = True' but not otherwise. Carlos Nepomuceno <carlosnepomuceno@outlook.com> - 2013-05-29 22:31 +0300
          Re: Piping processes works with 'shell = True' but not otherwise. Cameron Simpson <cs@zip.com.au> - 2013-05-30 08:18 +1000
      Re: Piping processes works with 'shell = True' but not otherwise. Chris Angelico <rosuav@gmail.com> - 2013-05-27 18:28 +1000
        Re: Piping processes works with 'shell = True' but not otherwise. Luca Cerone <luca.cerone@gmail.com> - 2013-05-27 04:33 -0700
      Re: Piping processes works with 'shell = True' but not otherwise. Chris Rebert <clp2@rebertia.com> - 2013-05-29 10:17 -0700
        Re: Piping processes works with 'shell = True' but not otherwise. Luca Cerone <luca.cerone@gmail.com> - 2013-05-31 02:28 -0700
          Re: Piping processes works with 'shell = True' but not otherwise. Peter Otten <__peter__@web.de> - 2013-05-31 11:52 +0200

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