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Mon, 14 Sep 2020 02:46:40 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.3.0-259-g88fbbfa-fm-20200903.003-g88fbbfa3 Mime-Version: 1.0 Message-Id: <8184488e-0f0c-47dc-9fc2-c785f7c8ec31@www.fastmail.com> In-Reply-To: <20200914061515.GA3324@prometheus.u-strasbg.fr> References: <20200914061515.GA3324@prometheus.u-strasbg.fr> Date: Mon, 14 Sep 2020 06:46:19 +0000 From: "Daniel Shahaf" To: "Marc Chantreux" , "Zsh hackers list" Subject: Re: what's the point of the precommand modifier - ? Content-Type: text/plain X-Seq: 26067 Archived-At: X-Loop: zsh-users@zsh.org Errors-To: zsh-users-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-users-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: Archived-At: Marc Chantreux wrote on Mon, 14 Sep 2020 06:15 +00:00: > hello, > > according to zshmisc(1): > > - The command is executed with a `-' prepended to its > argv[0] string. > > ok ... but why is it useful? Most shells check whether their argv[0] starts with a "-", and if that's the case, they behave as login shells (as though -l was passed). The effect can also be achieved with ARGV0; see zshparam(1). Cheers, Daniel