From: "Lawrence Velázquez" <larryv@zsh.org>
To: "Ray Andrews" <rayandrews@eastlink.ca>
Cc: zsh-users@zsh.org
Subject: Re: Counting characters in command output?
Date: Thu, 15 Feb 2024 09:34:57 -0500 [thread overview]
Message-ID: <cd71b81f-da8c-4c07-a491-d3c9552147b2@app.fastmail.com> (raw)
In-Reply-To: <58e3e416-1e9f-424c-b9af-b96b93dc9938@eastlink.ca>
On Wed, Feb 14, 2024, at 11:30 AM, Ray Andrews wrote:
> So really there is a logical problem too. We have another 'invisible'
> transformation. We 'have' quarts but liters are what's counted, yes?
>
>> I would in general have expected *foo $(bar) * to behave identically to *baz=$(bar); foo $baz*.
>
> Yes, it would be non-negotiable in algebra. a=b; b=c; ergo a=c.
The shell language isn't algebra. This is hardly the only case in
which the substitution principle doesn't hold without putting in
some extra work (which I'm omitting here for demonstration purposes).
% foo=(a b c)
% printf '<%s>' $foo; echo
<a><b><c>
% bar=$foo
% printf '<%s>' $bar; echo
<a b c>
--
vq
next prev parent reply other threads:[~2024-02-15 14:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-13 20:38 Mark J. Reed
2024-02-13 20:41 ` Roman Perepelitsa
2024-02-14 0:45 ` Mark J. Reed
2024-02-14 6:49 ` Roman Perepelitsa
2024-02-14 13:56 ` Mark J. Reed
2024-02-14 15:36 ` Ray Andrews
2024-02-14 15:58 ` Mark J. Reed
2024-02-14 16:30 ` Ray Andrews
2024-02-15 14:34 ` Lawrence Velázquez [this message]
2024-02-15 9:50 ` Roman Perepelitsa
2024-02-15 14:30 ` Lawrence Velázquez
2024-02-15 15:29 ` Ray Andrews
2024-02-15 16:16 ` Roman Perepelitsa
2024-02-15 16:55 ` Ray Andrews
2024-02-15 14:53 ` Ray Andrews
2024-02-16 1:53 ` Bart Schaefer
2024-02-16 4:53 ` Lawrence Velázquez
2024-02-16 18:03 ` Bart Schaefer
2024-02-16 18:38 ` Mark J. Reed
2024-02-16 19:36 ` Bart Schaefer
2024-02-16 19:37 ` Lawrence Velázquez
2024-02-16 21:06 ` Mikael Magnusson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=cd71b81f-da8c-4c07-a491-d3c9552147b2@app.fastmail.com \
--to=larryv@zsh.org \
--cc=rayandrews@eastlink.ca \
--cc=zsh-users@zsh.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).