# filename-reserved-regex [![Build Status](https://travis-ci.org/sindresorhus/filename-reserved-regex.svg?branch=master)](https://travis-ci.org/sindresorhus/filename-reserved-regex) > Regular expression for matching reserved filename characters On Unix-like systems `/` is reserved and [`<>:"/\|?*`](http://msdn.microsoft.com/en-us/library/aa365247%28VS.85%29#naming_conventions) on Windows. ## Install ``` $ npm install --save filename-reserved-regex ``` ## Usage ```js var filenameReservedRegex = require('filename-reserved-regex'); filenameReservedRegex().test('foo/bar'); //=> false filenameReservedRegex().test('foo-bar'); //=> true 'foo/bar'.replace(filenameReservedRegex(), '!'); //=> foo!bar ``` ## License MIT © [Sindre Sorhus](http://sindresorhus.com)