# xo > A pluggable, zero-configuration linting utility for JavaScript. > More information: . - Lint files in the "src" directory: `xo` - Lint a given set of files: `xo {{path/to/file1.js path/to/file2.js ...}}` - Automatically fix any lint issues found: `xo --fix` - Lint using spaces as indentation instead of tabs: `xo --space` - Lint using the "prettier" code style: `xo --prettier`