update

package/lib/commands/root.js

@@ -0,0 +1,14 @@
+const { output } = require('proc-log')
+const BaseCommand = require('../base-cmd.js')
+
+class Root extends BaseCommand {
+  static description = 'Display npm root'
+  static name = 'root'
+  static params = ['global']
+
+  async exec () {
+    output.standard(this.npm.dir)
+  }
+}
+
+module.exports = Root