# File lib/rhc/commands/env.rb, line 87
    def unset(env)
      rest_app = find_app

      warn 'Removing environment variables is a destructive operation that may result in loss of data.'

      env.each do |e|
        default_display_env_var(e)
      end

      confirm_action "Are you sure you wish to remove the environment variable(s) above from application '#{rest_app.name}'?"
      say 'Removing environment variable(s) ... '
      rest_app.unset_environment_variables(env)
      success 'done'

      0
    end