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Wed, 25 Jan 2023 09:37:28 -0800 (PST) MIME-Version: 1.0 References: <0dc71450-d082-93da-52f8-d4e6b97199af@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: Roman Perepelitsa Date: Wed, 25 Jan 2023 18:37:16 +0100 Message-ID: Subject: Re: path PATH To: Ray Andrews Cc: zsh-users@zsh.org Content-Type: text/plain; charset="UTF-8" X-Seq: 28794 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 6:34 PM Ray Andrews wrote: > > > On 2023-01-25 09:02, Roman Perepelitsa wrote: > > These parameters have values. The following three lines are equivalent > > 5 /aWorking/Zsh/Source/Wk 1 $ zzz= > > 5 /aWorking/Zsh/Source/Wk 1 $ echo "'$zzz'" > '' > > What is the value of zzz? How can it be called anything but nothing? This value is usually called "empty" or "null". The parameter is not unset though. Roman.