How to check rails environment?
Ruby on-RailsUbuntuProductionRuby on-Rails Problem Overview
How check rails environment on Ubuntu Server?
command: Rails.env => command not found
command: rails.env => command not found
Ruby on-Rails Solutions
Solution 1 - Ruby on-Rails
One liner if you are in app root
> rails r "puts Rails.env"
Solution 2 - Ruby on-Rails
It sounds like you tried to run Rails.env in a shell. That won't work because Rails.env is Ruby code, not a Unix shell command.
How are you deploying and starting your rails app on the server? The Rails environment is determined by whatever the value of the RAILS_ENV environment variable is when the server starts. You might have some configuration file somewhere that specifies it, or maybe you just start your server with a command of the form RAILS_ENV=production my_rails_server? I would need to know more details about exactly what commands you run to start the server in order to really answer this. Are you using unicorn, mongrel, Webrick, or something else?
Solution 3 - Ruby on-Rails
You can check complete details about your rails app. By typing this command "rake about". Will give you brief details about which version of ruby have you installed on your machine, rails version etc. For example -
About your application's environment
Rails version ------> 4.2.6
Ruby version ------> 2.3.1-p112 (x86_64-linux)
RubyGems version ----> 2.5.1
Rack version ----> 1.6.4
JavaScript Runtime -------> Node.js (V8)
Middleware ------> Rack::Sendfile, ActionDispatch::Static,
Application root ----> /data/www/testapp
Environment ------> development
Database adapter -----> mysql2
Database schema version -----> 0
Solution 4 - Ruby on-Rails
On your Rails Application directory type :
> rake about
Solution 5 - Ruby on-Rails
You can also check your environment from your Rails console in the shell. Start at the application directory path.
rails console<enter>
after you see the output from your console... (your output will most likely differ)
Running via Spring preloader in process XXXXX
Loading development environment (Rails X.x.x)
irb(main):001:0>
At the promt type
Rails.env<enter>
Unless you have custom environments, one of the following environment is loaded
=> "development"
=> "production"
=> "test"
Solution 6 - Ruby on-Rails
rails r -e production 'p Rails.env'
production
rails r -e production 'p Rails.env.production?'
true
rails r 'p Rails.env'
development
rails r -e development 'p Rails.env.development?'
true
rails r -e test 'p Rails.env.test?'
true
PS If rails command not found try to use path bin/:
bin/rails r 'p Rails.env'
development
PS If use rvm, check installed ruby versions:
rvm list
ruby-2.2.0 [ x86_64 ]
ruby-2.2.4 [ x86_64 ]
ruby-2.6.2 [ x86_64 ]
ruby-2.7.0 [ x86_64 ]
ruby-2.7.1 [ x86_64 ]
=> ruby-2.7.2 [ x86_64 ]
* ruby-2.7.3 [ x86_64 ]
ruby-3.0.0 [ x86_64 ]
# => - current
# =* - current && default
# * - default
Select to version:
rvm use ruby-3.0.0
Bundle install:
bundle