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To: "zsh-workers@zsh.org" <zsh-workers@zsh.org>
From: Vasiliy Ivanov <beelzebubbie.logs@gmail.com>
Subject: `=' expansion causes script/subshell to exit, bug?
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Message-ID: <16141d86-9d3e-275f-f7b4-d8b07fc97aa7@gmail.com>
Date: Fri, 28 Sep 2018 01:20:25 +0600
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Hello. Recently I've seen that line like

[[ -x =somebinary ]] || cmd

causes script to exit unexpectedly with message like «/path/to/script:$line: =somebinary not found»,
instead of invoking || cmd and continue executing

some simple tests:

% ( [[ -x =123123 ]] || { print 'ohshi'; exit 2 } )
zsh: 123123 not found <exit code 1>

% ( b=123123; print =$b; print 'ohshi' )                                                  ↑
zsh: 123123 not found

Is it intended behaviour?

% zsh --version
zsh 5.6.2 (x86_64-pc-linux-gnu)

-- 
Regards,
  Vasiliy Ivanov <beelzebubbie.logs@gmail.com>