From: Mikael Magnusson <mikachu@gmail.com>
To: Bart Schaefer <schaefer@brasslantern.com>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: $PPID not updated when the PPID changes (parent killed)
Date: Tue, 18 May 2021 17:18:35 +0200 [thread overview]
Message-ID: <CAHYJk3Q0PRJG9pinJ2WG+n1Jjokd_WzfcjCRzYsY+SNNyghi-A@mail.gmail.com> (raw)
In-Reply-To: <CAH+w=7bywj1X1fyPLgpmo_OoqBEN8PjEDxDeKP-tMR_O4g04tg@mail.gmail.com>
On 5/18/21, Bart Schaefer <schaefer@brasslantern.com> wrote:
> Aside, it's a bit odd that SHLVL isn't read-only. Even assorted Bash
> tutorials found by online search treat it as immutable (statements
> like "$dog is only available at SHLVL 2") despite that it can be
> arbitrarily messed with.
I sometimes set it (in practice only to the empty string), such that
the first shell in a new terminal always ends up with SHLVL=1 (my
prompt hilights when it is non-1 so that i know i can safely exit
without having the terminal be closed, eg while testing new zsh builds
or other things where i want a temporary shell state). I also do some
window manager development so things like "SHLVL= openbox --replace"
tend to happen as well.
--
Mikael Magnusson
next prev parent reply other threads:[~2021-05-18 15:18 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-16 15:24 Vincent Lefevre
2021-05-16 18:37 ` Bart Schaefer
2021-05-17 20:26 ` Vincent Lefevre
2021-05-17 21:00 ` Bart Schaefer
2021-05-17 22:27 ` Phil Pennock
2021-05-17 23:15 ` Bart Schaefer
2021-05-18 0:30 ` Phil Pennock
2021-05-18 1:14 ` Bart Schaefer
2021-05-18 8:28 ` Vincent Lefevre
2021-05-18 8:15 ` Vincent Lefevre
2021-05-18 14:53 ` Bart Schaefer
2021-05-19 4:25 ` Bart Schaefer
2021-07-18 23:10 ` Lawrence Velázquez
2021-05-18 15:18 ` Mikael Magnusson [this message]
2021-05-18 16:14 ` Peter Stephenson
2021-05-18 18:20 ` Bart Schaefer
2021-05-18 17:37 ` Martijn Dekker
2021-05-18 18:08 ` Bart Schaefer
2021-05-18 19:40 ` Martijn Dekker
2021-05-18 18:06 ` Stephane Chazelas
2021-05-18 18:12 ` Bart Schaefer
2021-05-18 18:50 ` $SHLVL origin (was: $PPID not updated when the PPID changes (parent killed)) Stephane Chazelas
2021-05-18 15:56 ` $PPID not updated when the PPID changes (parent killed) Stephane Chazelas
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