This linter plugin for Linter provides an interface to Ruby's builtin syntax analysis. It will be used with files that have the Ruby syntax.

On first activation the plugin will install all dependencies automatically, you no longer have to worry about installing Linter.

Just install this package and you'll be good to go.

You can configure linter-ruby by editing ~/.atom/config.cson (choose Open Your Config in Atom menu):

'linter-ruby':
  # ruby path. run `which ruby` to find the path.
  'rubyExecutablePath': null

  # ignored extensions, ERB and markdown files by default.
  'ignoredExtensions': 'erb, md'