Ruby on Rails: How can I specify runner script environment

I am using a shell script to run some runner scripts in my Ruby on Rails app. I need to run it on the production database, but the following:

#!/bin/bash
/usr/bin/ruby RAILS_ENV=production ../script/runner ../lib/tasks.rb

gives an error:

/usr/bin/ruby: No such file or directory -- RAILS_ENV=production (LoadError)

I have tried to force it in config/environment.rb

ENV['RAILS_ENV'] ||= 'production'

or even

ENV['RAILS_ENV'] = 'production'

but even with that it still runs in development environment.

Update: I can force the scripts to connect to the right database by editing the config/database.yml file, but I wonder what's the proper way of doing it.

From stackoverflow

• If that's your command, the order of your arguments is your biggest problem.

  /usr/bin/ruby RAILS_ENV=production ../script/runner ../lib/tasks.rb
  

  Is different than.

  /usr/bin/ruby ../script/runner ../lib/tasks.rb RAILS_ENV=production
  

  The second example is looking for the file, the first one is setting a runtime variable while ruby interpreting it as the file you want to run.

• If you redo your script like this:

  #!/bin/bash
  RAILS_ENV=production
  /usr/bin/ruby ../script/runner ../lib/tasks.rb
  

  ...that will make it stick for the lifetime of the script. To make it stick for the lifetime of the shell's session, change it to

  #!/bin/bash
  export RAILS_ENV=production
  /usr/bin/ruby ../script/runner ../lib/tasks.rb
  

• You can set the environment variable like this :

  RAILS_ENV=production /usr/bin/ruby ../script/runner ../lib/tasks.rb
  

• The help on the command line for script/runner gives you your answer.

  script/runner -e production Model.method
  

  Chirantan : Faced the same issue. This solution worked for me. Thanks. +1