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How to detect that Zsh startup is result of exec zsh?

X-seq: zsh-users 21886
From: Sebastian Gniazdowski <sgniazdowski@xxxxxxxxx>
To: Zsh Users <zsh-users@xxxxxxx>
Subject: How to detect that Zsh startup is result of exec zsh?
Date: Tue, 13 Sep 2016 14:23:23 +0200
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Hello,
first `exec zsh` can be detected via SHLVL. It will be "1". And some
other variable set in .zshrc earlier will be non-zero. But what with
`exec zsh` ran from sub-shell?

Best regards,
Sebastian Gniazdowski

Follow-Ups:
- Re: How to detect that Zsh startup is result of exec zsh?
  - From: Peter Stephenson

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