/usr/lib/ruby/vendor_ruby/specinfra/command/darwin/base/port.rb is in ruby-specinfra 2.35.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | class Specinfra::Command::Darwin::Base::Port < Specinfra::Command::Base::Port
class << self
def check_is_listening(port, options={})
regexp = ":#{port} "
"lsof -nP -iTCP -sTCP:LISTEN | grep -- #{escape(regexp)}"
end
end
end
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