sass

TLDR

Convert a SCSS or Sass file to CSS and print out the result

$ sass [inputfile.scss|inputfile.sass]

Convert a SCSS or Sass file to CSS and save the result to a file

$ sass [inputfile.scss|inputfile.sass] [outputfile.css]

Watch a SCSS or Sass file for changes and output or update the CSS file with same filename

$ sass --watch [inputfile.scss|inputfile.sass]

Watch a SCSS or Sass file for changes and output or update the CSS file with the given filename

$ sass --watch [inputfile.scss|inputfile.sass]:[outputfile.css]

sass [options] [INPUT] [OUTPUT]

Converts SCSS or Sass files to CSS.

-I, --load-path PATH: Specify a Sass import path.
-r, --require LIB: Require a Ruby library before running Sass.
--compass: Make Compass imports available and load project configuration.
-t, --style NAME: Output style. Can be nested (default), compact, compressed, or expanded.
-?, -h, --help: Show this help message.
-v, --version: Print the Sass version.

--watch: Watch files or directories for changes. The location of the generated CSS can be set using a colon:
sass --watch input.sass:output.css: sass --watch input-dir:output-dir
--poll: Check for file changes manually, rather than relying on the OS. Only meaningful for --watch.
--update: Compile files or directories to CSS. Locations are set like --watch.
-f, --force: Recompile every Sass file, even if the CSS file is newer. Only meaningful for --update.
--stop-on-error: If a file fails to compile, exit immediately. Only meaningful for --watch and --update.

--scss: Use the CSS-superset SCSS syntax.
--sourcemap=TYPE: How to link generated output to the source files. auto (default): relative paths where possible, file URIs elsewhere file: always absolute file URIs inline: include the source text in the sourcemap none: no sourcemaps
-s, --stdin: Read input from standard input instead of an input file. This is the default if no input file is specified.
-E, --default-encoding ENCODING: Specify the default encoding for input files.
--unix-newlines: Use Unix-style newlines in written files. Always true on Unix.
-g, --debug-info: Emit output that can be used by the FireSass Firebug plugin.
-l, --line-numbers: Emit comments in the generated CSS indicating the corresponding source line.

--line-comments

-i, --interactive: Run an interactive SassScript shell.
-c, --check: Just check syntax, don't evaluate.
--precision NUMBER_OF_DIGITS How many digits of precision to use when outputting decimal numbers.: Defaults to 10.
--cache-location PATH: The path to save parsed Sass files. Defaults to .sass-cache.
-C, --no-cache: Don't cache parsed Sass files.
--trace: Show a full Ruby stack trace on error.
-q, --quiet: Silence warnings and status messages during compilation.