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Reed" Date: Sun, 12 Nov 2023 10:59:33 -0500 Message-ID: Subject: Bug: reading from tty inside process substitution To: zsh-workers@zsh.org Content-Type: multipart/alternative; boundary="00000000000066f9440609f6a44b" X-Seq: 52294 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: --00000000000066f9440609f6a44b Content-Type: text/plain; charset="UTF-8" The below code hangs after reading the line from the terminal: read foo < <(read bar /dev/tty 2>&1; echo $item) Both commands work as intended in both bash and ksh. If I replace the outer `read` with a command substitution, it works in zsh as well (it started out as `read` because I was getting multiple values out of the `select`ed line). I'm running zsh 5.9, tested on macOS 13.6 and 14.0 and Ubuntu 22.04.3 -- Mark J. Reed --00000000000066f9440609f6a44b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
The below code hangs after reading the line from the termi= nal:

=C2=A0 =C2=A0 read foo < <(read bar </dev/= tty; echo $bar)

The actual use case I ran into thi= s involved=C2=A0a select, which also hangs after item selection:
=
=C2=A0 =C2=A0 read foo < <(select item in a b c; do br= eak; done </dev/tty >/dev/tty 2>&1; echo $item)

=
Both commands work as intended in both bash and ksh.=C2=A0
=

If I replace the outer `read` with a command=C2=A0subst= itution, it works in zsh as well (it started out as `read` because=C2=A0I w= as getting multiple values out of the `select`ed line).

I'm running zsh 5.9, tested on macOS 13.6 and 14.= 0 and Ubuntu 22.04.3
-- =
Mark J. Reed <markjreed@gmail.com>
--00000000000066f9440609f6a44b--