Re: [Help-bash] Best way to suppress the error message in $(< nonexisten

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Re: [Help-bash] Best way to suppress the error message in $(< nonexisten

From:	Peng Yu
Subject:	Re: [Help-bash] Best way to suppress the error message in $(< nonexistent_file)
Date:	Wed, 28 Nov 2018 09:56:30 -0600

> $ echo >&-
> -bash: echo: write error: Bad file descriptor
>
> So an application using this descriptor may eg. crash.

I don't quite understand. Why this command does not cause any error?

{ x=$( <doesnotexist) ;} 2>&-

-- 
Regards,
Peng

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[Help-bash] Best way to suppress the error message in $(< nonexistent_file), Peng Yu, 2018/11/28
- Re: [Help-bash] Best way to suppress the error message in $(< nonexistent_file), Pierre Gaston, 2018/11/28
  - Re: [Help-bash] Best way to suppress the error message in $(< nonexistent_file), Peng Yu, 2018/11/28
    - Re: [Help-bash] Best way to suppress the error message in $(< nonexistent_file), Greg Wooledge, 2018/11/28
    - Re: [Help-bash] Best way to suppress the error message in $(< nonexistent_file), Pierre Gaston, 2018/11/28
    - Re: [Help-bash] Best way to suppress the error message in $(< nonexistent_file), Peng Yu <=
    - Re: [Help-bash] Best way to suppress the error message in $(< nonexistent_file), Chet Ramey, 2018/11/28

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