Pass variables to arbitrary ruby script: ruby script.rb

ruby-talk
1

Does anyone know if there is a way to pass variables to a arbitrarily
run script? I tried this with no luck.

ruby script.rb VARIABLE=value

Thanks!

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2

man ruby

In particular, look at the documentation of the -s switch...

m.

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Mario Gr <mflores3@gmail.com> wrote:

Does anyone know if there is a way to pass variables to a arbitrarily
run script? I tried this with no luck.

ruby script.rb VARIABLE=value

3

What variables exactly? Do you want to set shell variables? Du you want to propagate variables from one Ruby script to another?

Kind regards

  robert

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On 03.07.2009 20:07, Mario Gr wrote:

Does anyone know if there is a way to pass variables to a arbitrarily
run script? I tried this with no luck.

ruby script.rb VARIABLE=value

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remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

4

Mario Gr wrote:

Does anyone know if there is a way to pass variables to a arbitrarily
run script? I tried this with no luck.

ruby script.rb VARIABLE=value

Option 1: parse ARGV directly. I think this is what rake does.

For example, to build a hash:

vars={}
ARGV.each do |str|
  vars[$1]=$2 if str =~ /\A(.*?)=(.*)\z/
end
puts vars['VARIABLE']

Or you could use eval to set local variables if that's what you really
want (but I would strongly recommend against this)

Option 2: pass variables in the environment.

env VARIABLE=value ruby script.rb

#!/usr/bin/ruby
puts "You passed ", ENV['VARIABLE']

HTH,

Brian.

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5

Thanks for all the help guys!

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