[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: reading from external command
From: |
Peng Yu |
Subject: |
Re: reading from external command |
Date: |
Thu, 31 Mar 2022 22:03:40 -0500 |
OK. I missed it. Thanks.
On 3/31/22, Lawrence Velázquez <vq@larryv.me> wrote:
> On Thu, Mar 31, 2022, at 9:01 PM, Peng Yu wrote:
>> Where?
>
> https://lists.gnu.org/archive/html/help-bash/2022-03/msg00072.html
>
> Reproduced here:
>
> % cat main.bash; echo
> printf '%s\n' "$BASH_VERSION"
>
> {
> pid=$!
> while read -r x; do
> echo <(exit 42)
> done
> } < <(builtin printf '%s\n' a b c; exit 99)
>
> wait "$pid"
> echo "$?"
>
> % bash main.bash
> 5.1.16(1)-release
> /dev/fd/62
> /dev/fd/62
> /dev/fd/62
> 99
>
>> Without requiring a temp file?
>
> No temporary files are involved, unless you count the temporary
> FIFOs inherent to using process substitution on systems that don't
> have /dev/fd.
>
> --
> vq
>
--
Regards,
Peng
- Re: reading from external command, (continued)
- Re: reading from external command, Chet Ramey, 2022/03/31
- Re: reading from external command, Peng Yu, 2022/03/31
- Re: reading from external command, Alex fxmbsw7 Ratchev, 2022/03/31
- Re: reading from external command, Alex fxmbsw7 Ratchev, 2022/03/31
- Re: reading from external command, Alex fxmbsw7 Ratchev, 2022/03/31
- Re: reading from external command, Alex fxmbsw7 Ratchev, 2022/03/31
- Re: reading from external command, Lawrence Velázquez, 2022/03/31
- Re: reading from external command, Peng Yu, 2022/03/31
- Re: reading from external command, Lawrence Velázquez, 2022/03/31
- Re: reading from external command, Alex fxmbsw7 Ratchev, 2022/03/31
- Re: reading from external command,
Peng Yu <=
- Re: reading from external command, Alex fxmbsw7 Ratchev, 2022/03/31