postcss

TLDR

Parse and transform a CSS file

$ postcss [path/to/file]

Parse and transform a CSS file and output to a specific file

$ postcss [path/to/file] --output [path/to/file]

Parse and transform a CSS file and output to a specific directory

$ postcss [path/to/file] --dir [path/to/directory]

Parse and transform a CSS file in-place

$ postcss [path/to/file] --replace

Specify a custom PostCSS parser

$ postcss [path/to/file] --parser [parser]

Specify a custom PostCSS syntax

$ postcss [path/to/file] --syntax [syntax]

Watch for changes to a CSS file

$ postcss [path/to/file] --watch

Display help

$ postcss --help