# File lib/specinfra/command/module/ss.rb, line 5 def check_is_listening(port, options={}) if options[:local_address] pattern = inaddr_any_to_asterisk(options[:local_address]).map { |l| " #{l}:#{port} " } pattern = pattern.join('|') else pattern = ":#{port} " end "ss #{command_options(options[:protocol])} | grep -E -- #{escape(pattern)}" end