Lint Ruby files. More information: https://docs.rubocop.org/rubocop/usage/basic_usage.html.
rubocop
rubocop {{path/to/file_or_directory1 path/to/file_or_directory2 ...}}
rubocop --out {{path/to/file}}
rubocop --show-cops
rubocop --except {{cop1 cop2 ...}}
rubocop --only {{cop1 cop2 ...}}
rubocop --auto-correct