Re: ruby -e and global variables

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From	August Werner <august-werner@invalid.invalid>
Newsgroups	comp.lang.ruby
Subject	Re: ruby -e and global variables
Date	24 Sep 2021 19:09:07 GMT
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tcb...@gmail.com wrote:

> I'm trying to assign a global variable when using ruby -e
> `ruby -e "$a=3"`
> -e:1: syntax error, unexpected '='
> 
> So it seems I can't assign global variables when using ruby -e
> What I wanted is to assign $stdout = StringIO.new
> so I capture the output

Hello,

Your problem with

ruby -e "$a=3"

and therefore also with

ruby -e "$stdout = StringIO.new".

Regardless of whether this makes sense, you have a problem with the shell
(or perhaps other command line interpreter). You are using an unprotected
ruby command text with characters that the shell interprets for itself.

With:

ruby -e '$a=3'

or

ruby -e "\$a=3"

no one complains anymore.

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ruby -e and global variables "tcb...@gmail.com" <tcblues@gmail.com> - 2021-09-24 05:51 -0700
  Re: ruby -e and global variables August Werner <august-werner@invalid.invalid> - 2021-09-24 19:09 +0000

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