# Sass > Converts SCSS or Sass files to CSS. - Output converted file to stdout: `sass {{inputfile.scss|inputfile.sass}}` - Immediately convert SCSS or Sass file to CSS to specified output file: `sass {{inputfile.scss|inputfile.sass}} {{outputfile.css}}` - Watch SCSS or Sass file for changes and output or update CSS file with same filename: `sass --watch {{inputfile.scss|inputfile.sass}}` - Watch SCSS or Sass file for changes and output or update CSS file with specified filename: `sass --watch {{inputfile.scss|inputfile.sass}}:{{outputfile.css}}`