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From: "Måns Rullgård" <mans@mansr.com>
To: Jeff Learman <jjlearman@gmail.com>
Cc: sox-users@lists.sourceforge.net
Subject: Re: Piping output of sox to a file produces empty text
Date: Mon, 27 Jul 2020 20:42:46 +0100
Message-ID: <yw1xa6zk218p.fsf@mansr.com> (raw)
In-Reply-To: <CAGyjer6VRPtK4vWhH+oKhrhuyaoD=qF+jas4-+opn+oZf07ZJQ@mail.gmail.com> (Jeff Learman's message of "Mon, 27 Jul 2020 15:02:14 -0400")

Jeff Learman <jjlearman@gmail.com> writes:

>> On Mon, 27 Jul 2020 at 14:49, Ariel Elkin <ariel@arivibes.com> wrote:
>>
>>> Hello,
>>>
>>> I’d like to save the output of the stat command to a file.
>>>
>>> When I call
>>> sox file.mp3 -n stat
>>>
>>> The output is correctly displayed. But If I then do
>>> sox file.mp3 -n stat > file.txt
>>>
>>> file.txt is empty.
>>>
>>> Why?
>
> I didn't check, but perhaps sox text output is going to stderr.  For
> Linux/UNIX, using many shells (sh, ksh, tsh, zsh, bash, but not csh),
> redirect stderr this way:
>
> sox file.mp3 -n stat > file.txt 2>&1

Per the man page, "The information is output to the `standard error'
(stderr) stream."

-- 
Måns Rullgård


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Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-27 16:17 Ariel Elkin
2020-07-27 19:02 ` Jeff Learman
2020-07-27 19:04   ` Jeff Learman
2020-07-27 19:42   ` Måns Rullgård [this message]

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