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Wed, 25 Jan 2023 14:18:19 -0800 (PST) MIME-Version: 1.0 References: <0dc71450-d082-93da-52f8-d4e6b97199af@eastlink.ca> <3b93f68e-d090-15c0-c15e-a3d09d702f76@eastlink.ca> <07323898-9985-4e9f-8b54-c08fd8510fe8@app.fastmail.com> <08102bc6-b331-504f-fcd5-28fa3cdb0e2f@eastlink.ca> <00818033-2566-52b3-33a9-62591a93d707@eastlink.ca> <394f641a-318d-4e87-4f9d-de54119b7dc7@eastlink.ca> In-Reply-To: From: Bart Schaefer Date: Wed, 25 Jan 2023 14:18:07 -0800 Message-ID: Subject: Re: path PATH To: Roman Perepelitsa Cc: Ray Andrews , zsh-users@zsh.org Content-Type: text/plain; charset="UTF-8" X-Seq: 28799 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: On Wed, Jan 25, 2023 at 9:06 AM Roman Perepelitsa wrote: > > These parameters have values. The following three lines are equivalent > (assuming that foo isn't set beforehand): > > typeset foo > typeset foo= > typeset foo="" Note in passing that if the TYPESET_TO_UNSET option is in effect, the first of those three is not equivalent to the other two. > typeset -i foo Similarly. This exposes another case where only "typeset" can provide full information. % typeset +m foo integer foo % printf "<%s>\n" $parameters[foo] <> % The parameter is unset and so not in $parameters, but typeset "remembers" that it is an integer.