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