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Re: How to use precommand modifiers `-` ?

X-seq: zsh-users 26732
From: Roman Perepelitsa <roman.perepelitsa@xxxxxxxxx>
To: andme <15991987063@xxxxxxx>
Cc: zsh-users <zsh-users@xxxxxxx>
Subject: Re: How to use precommand modifiers `-` ?
Date: Thu, 13 May 2021 13:04:04 +0200
Archived-at: <https://zsh.org/users/26732>
In-reply-to: <63c609c4.4d5f.17965205c4c.Coremail.15991987063@163.com>
List-id: <zsh-users.zsh.org>
References: <63c609c4.4d5f.17965205c4c.Coremail.15991987063@163.com>

On Thu, May 13, 2021 at 12:56 PM andme <15991987063@xxxxxxx> wrote:
>
> ```-
>
> The command is executed with a ‘-’ prepended to its argv[0] string.
>
> ```
>
> As a non-native speaker of English, I'm confused about this.
> Can anyone give me some examples?

Here's an example:

    % zsh -fc 'print -r -- $0'
    zsh

    % - zsh -fc 'print -r -- $0'
    -zsh

Here $0 gives us argv[0].

Roman.

Follow-Ups:
- Re: How to use precommand modifiers `-` ?
  - From: Vincent Bernat

References:
- How to use precommand modifiers `-` ?
  - From: andme

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