From: "Lawrence Velázquez" <vq@larryv.me>
To: Ray Andrews <rayandrews@eastlink.ca>
Cc: zsh-users@zsh.org
Subject: Re: The "-" and "--" options (was Re: ${var:1:1:=y})
Date: Wed, 4 Feb 2015 18:47:17 -0500 [thread overview]
Message-ID: <260A930A-CA77-4BDB-8827-047F742FD3CF@larryv.me> (raw)
In-Reply-To: <54D25A02.1000605@eastlink.ca>
On Feb 4, 2015, at 12:42 PM, Ray Andrews <rayandrews@eastlink.ca> wrote:
> I'm glad I've been disabused of any notion that consistency is something
> to be expected or even valued.
As others have opined, expecting "consistency" from any echo(1) is a bad
bet, and there are reasons why zsh's echo doesn't work the way you want
it to. Use printf(1).
> Anyway it seems that this makes it difficult to echo a dash. I'd have
> guessed that single quoting the dash would work, but no luck, however:
>
> $ echo '- '
>
> works, so that will do.
It "works" because the argument is actually a hyphen followed by
a space. That's why echo doesn't treat it specially. Use this to
print a hyphen:
% echo - -
Or, again, use printf(1) if you're concerned at all about portability.
vq
next prev parent reply other threads:[~2015-02-04 23:47 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-03 23:12 ${var:1:1:=y} Ray Andrews
2015-02-04 0:18 ` ${var:1:1:=y} Lawrence Velázquez
2015-02-04 0:39 ` ${var:1:1:=y} Ray Andrews
2015-02-04 1:30 ` ${var:1:1:=y} Lawrence Velázquez
2015-02-04 3:25 ` ${var:1:1:=y} Bart Schaefer
2015-02-04 3:44 ` ${var:1:1:=y} Eric Cook
2015-02-04 17:10 ` The "-" and "--" options (was Re: ${var:1:1:=y}) Bart Schaefer
2015-02-04 17:42 ` Ray Andrews
2015-02-04 23:47 ` Lawrence Velázquez [this message]
2015-02-05 1:31 ` Ray Andrews
2015-02-05 1:52 ` Kurtis Rader
2015-02-05 2:03 ` Ray Andrews
2015-02-05 2:24 ` Bart Schaefer
2015-02-04 19:02 ` Peter Stephenson
2015-02-04 19:53 ` ZyX
2015-02-04 5:16 ` ${var:1:1:=y} Ray Andrews
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