FAQ 8.23 How can I open a pipe both to and from a command?
in [Perl]
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From: PerlFAQ Server on 4 Aug 2010 00:00 This is an excerpt from the latest version perlfaq8.pod, which comes with the standard Perl distribution. These postings aim to reduce the number of repeated questions as well as allow the community to review and update the answers. The latest version of the complete perlfaq is at http://faq.perl.org . -------------------------------------------------------------------- 8.23: How can I open a pipe both to and from a command? The "IPC::Open2" module (part of the standard perl distribution) is an easy-to-use approach that internally uses "pipe()", "fork()", and "exec()" to do the job. Make sure you read the deadlock warnings in its documentation, though (see IPC::Open2). See "Bidirectional Communication with Another Process" in perlipc and "Bidirectional Communication with Yourself" in perlipc You may also use the "IPC::Open3" module (part of the standard perl distribution), but be warned that it has a different order of arguments from "IPC::Open2" (see IPC::Open3). -------------------------------------------------------------------- The perlfaq-workers, a group of volunteers, maintain the perlfaq. They are not necessarily experts in every domain where Perl might show up, so please include as much information as possible and relevant in any corrections. The perlfaq-workers also don't have access to every operating system or platform, so please include relevant details for corrections to examples that do not work on particular platforms. Working code is greatly appreciated. If you'd like to help maintain the perlfaq, see the details in perlfaq.pod. |