From: Ray Andrews <rayandrews@eastlink.ca>
To: zsh-users@zsh.org
Subject: Re: triviality regarding $# counts
Date: Sat, 13 Apr 2024 17:19:51 -0700 [thread overview]
Message-ID: <0fe90964-3fe9-4c08-a19b-267be086a78d@eastlink.ca> (raw)
In-Reply-To: <CAH+w=7b6zoLon5RfJQNZ71AF1yEV=B8fAEE-9cU=yfWVKGybgg@mail.gmail.com>
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On 2024-04-13 13:53, Bart Schaefer wrote:
> On Sat, Apr 13, 2024 at 8:14 AM Ray Andrews<rayandrews@eastlink.ca> wrote:
> In the beginning, there were only environment strings ($SHELL, $PATH,
> etc.) and positional parameters ($1, $2, etc.). When a command was
> run, it got its arguments as an "array" of positional parameters.
> This is how "variables" came to be called "parameters" in shell
> jargon. This mapped directly onto C main() argc ($#) and argv[] ($@)
> with the phantom $0 as the name of the command.
>
Some might say it's esoteric trivia but I disagree. When you elucidate
the history, and the mapping onto C, things make more sense. The shells
had to grow organically, didn't they?
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next prev parent reply other threads:[~2024-04-14 0:20 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-11 0:56 Ray Andrews
2024-04-12 4:55 ` Lawrence Velázquez
2024-04-12 14:48 ` Ray Andrews
2024-04-12 19:09 ` Bart Schaefer
2024-04-13 1:13 ` Ray Andrews
2024-04-13 1:33 ` Mark J. Reed
2024-04-13 2:28 ` Ray Andrews
2024-04-13 3:25 ` Lawrence Velázquez
2024-04-13 14:37 ` Ray Andrews
2024-04-13 15:14 ` Ray Andrews
2024-04-13 17:19 ` Mark J. Reed
2024-04-13 17:27 ` Mark J. Reed
2024-04-13 18:08 ` Ray Andrews
2024-04-13 19:45 ` Bart Schaefer
2024-04-13 20:36 ` Ray Andrews
2024-04-13 21:01 ` Bart Schaefer
2024-04-14 0:28 ` Ray Andrews
2024-04-14 0:30 ` Lawrence Velázquez
2024-04-14 3:26 ` Ray Andrews
2024-04-14 3:49 ` Lawrence Velázquez
2024-04-14 4:57 ` Bart Schaefer
2024-04-14 13:24 ` Ray Andrews
2024-04-14 13:35 ` Roman Perepelitsa
2024-04-14 14:06 ` Ray Andrews
2024-04-14 14:15 ` Roman Perepelitsa
2024-04-14 14:53 ` Ray Andrews
2024-04-14 15:11 ` Mark J. Reed
2024-04-14 16:23 ` Ray Andrews
2024-04-14 14:06 ` Mark J. Reed
2024-04-14 14:47 ` Ray Andrews
2024-04-14 14:59 ` Mark J. Reed
2024-04-14 15:51 ` Bart Schaefer
2024-04-14 17:22 ` Ray Andrews
2024-04-14 17:42 ` Mark J. Reed
2024-04-14 18:24 ` Bart Schaefer
2024-04-14 22:00 ` Ray Andrews
2024-04-13 20:11 ` Mark J. Reed
2024-04-13 20:53 ` Bart Schaefer
2024-04-14 0:19 ` Ray Andrews [this message]
2024-04-13 1:35 ` Bart Schaefer
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