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From: Michael Smith <michael.smith@cloudera.com>
To: zsh-workers@zsh.org
Subject: Bug: 'export FOO' not idempotent
Date: Mon, 27 Jun 2022 14:11:34 -0700	[thread overview]
Message-ID: <CAJV0PfLODd17k524MTGDkdsL0nYzsLL7tp08wXFxSU_uuuq+GA@mail.gmail.com> (raw)

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Environments tested:
- macOS 12.4, M1 chip, zsh 5.8.1 (x86_64-apple-darwin21.0)
- Ubuntu 20.04.4, zsh 5.8 (x86_64-ubuntu-linux-gnu)

If I repeat 'export FOO' to mark an environment variable not give it a
value, in bash it consistently does not show up in 'env':

$ export FOO

$ env | grep FOO

$ export FOO

$ env | grep FOO

but in zsh the 2nd invocation will set it to an empty string:

$ export FOO

$ env | grep FOO

$ export FOO
        $ env | grep FOO

FOO=


This is an issue only because a project I'm building uses an empty export
for documentation, and it makes that project annoying to work with.

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             reply	other threads:[~2022-06-27 21:12 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-27 21:11 Michael Smith [this message]
2022-06-27 21:43 ` Lawrence Velázquez
2022-06-27 21:46   ` Michael Smith
2022-06-27 21:52     ` Lawrence Velázquez
2022-06-27 21:58       ` Roman Perepelitsa
2022-06-27 22:37         ` Lawrence Velázquez
2022-07-02 22:05           ` Bart Schaefer
2022-07-02 22:14             ` Bart Schaefer
2022-06-27 21:50   ` Roman Perepelitsa

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