command line erb?

[Robert Phillips]

Hi

Is there a command line ERB? 

I've heard of one but if I look for an ERB executable I can't see one

I am in windows, I don't know if there is one in linux but not in windows?  if perhaps the issue is different distros of ruby , I don't know which distro I have / how to find out.

Thanks

[Hassan Schroeder]

On Sun, Feb 25, 2018 at 9:08 AM, Robert Phillips
<robert.p...@gmail.com> wrote:

> Is there a command line ERB?

I suspect you're looking for "irb" -- Interactive Ruby.

> I am in windows, I don't know if there is one in linux but not in windows?
> if perhaps the issue is different distros of ruby , I don't know which
> distro I have / how to find out.

I can't help with the windows part, but how did you install Ruby?
Where is the ruby executable? I would think there would be an "irb"
executable in the same directory.

Also, `ruby --version` should tell you what you have installed.

HTH!
--
Hassan Schroeder ------------------------ hassan.s...@gmail.com
twitter: @hassan
Consulting Availability : Silicon Valley or remote

[Robert Phillips]

On Sunday, 25 February 2018 17:29:36 UTC, Hassan Schroeder wrote:

On Sun, Feb 25, 2018 at 9:08 AM, Robert Phillips
<robert.p...@gmail.com> wrote:

> Is there a command line ERB?

I suspect you're looking for "irb" -- Interactive Ruby.

No, ERB is not IRB.  ERB is called Embedded Ruby,  people often use it when they use Rails.

 

[Mauro Locatelli]

rails console?

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[Hassan Schroeder]

On Sun, Feb 25, 2018 at 9:46 AM, Robert Phillips
<robert.p...@gmail.com> wrote:

> No, ERB is not IRB. ERB is called Embedded Ruby, people often use it when
> they use Rails.

So what would a "command line ERB" do exactly?

[Robert Phillips]

No not the rails console!

ERB stands for Embedded Ruby!

You know when you do rails generate controller abc def

you get a file  def.html.erb

that's an ERB file, an Embedded Ruby file

The contents of that file get preprocessed , such that anything outside of <%..%>  gets outputted, and anything inside <%...%> gets executed and <%=....%> involves execution and a result outputted.

PHP has a similar concept.. PHP though also has a PHP.EXE file that you can run a file through and get the output.

I see it now, it's mentioned here 

https://stackoverflow.com/questions/980547/how-do-i-execute-ruby-template-files-erb-without-a-web-server-from-command-lin

C:\Ruby24-x64\bin>dir erb.* /s/b

C:\Ruby24-x64\bin\erb

C:\Ruby24-x64\bin\erb.cmd

C:\Ruby24-x64\bin>

C:\blah>type a.erb

<%= 5 %>

C:\blah>erb a.erb

5

C:\blah>

On Sunday, 25 February 2018 17:49:07 UTC, Mauro Locatelli wrote:

rails console?

Il 25 feb 2018 6:46 PM, "Robert Phillips" <robert.p...@gmail.com> ha scritto:

On Sunday, 25 February 2018 17:29:36 UTC, Hassan Schroeder wrote:

On Sun, Feb 25, 2018 at 9:08 AM, Robert Phillips
<robert.p...@gmail.com> wrote:

> Is there a command line ERB?

I suspect you're looking for "irb" -- Interactive Ruby.

No, ERB is not IRB.  ERB is called Embedded Ruby,  people often use it when they use Rails.

 

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[Mauro Locatelli]

Ok I understand, sorry but I never need a thing such these so I can't help you.

Mauro

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[Hassan Schroeder]

On Sun, Feb 25, 2018 at 10:14 AM, Robert Phillips
<robert.p...@gmail.com> wrote:

> C:\blah>type a.erb
> <%= 5 %>
> C:\blah>erb a.erb
> 5
> C:\blah>

Well, you learn something every day 😀

In 10 years of developing Rails apps I've never had a use case that
required that, but good to know...

[Robert Phillips]

On Sunday, 25 February 2018 18:18:37 UTC, Mauro Locatelli wrote:

Ok I understand, sorry but I never need a thing such these so I can't help you.

Mauro

Yes ok you couldn't help with that but I found the answer eventually, I mentioned it in my post, so it's ok. Thanks..

[Adam L]

This solved my problem. Thanks!