Find total size of files matching a wild card

du -csh **/*.map

Output:

1.9M	chunks/cc1a2627.880770519a9e0a4d9b6b.js.map
2.3M	chunks/commons.b4c5f8f1149e183f5e20.js.map
112K	chunks/f6078781a05fe1bcb0902d23dbbb2662c8d200b3.538f215a4cb84a5b4c8a.js.map
184K	chunks/fcc7b4b376c89b30a00e39aa049c59549f8ab0b8.33d0ec9ff787257f827b.js.map
312K	chunks/framework.b830e299d3206c090de5.js.map
 56K	chunks/main-790919ed3d9259a39406.js.map
4.0K	chunks/pages/404-715d304cc6d46fa706fc.js.map
564K	chunks/pages/_app-683f7b1edbb7d08729ef.js.map
4.0K	chunks/pages/_error-ca5382512c660a0a875b.js.map
4.0K	chunks/pages/index-3f1df7d7b5210bab0915.js.map
 12K	chunks/pages/shared/desktop-a1e767c6adfe89ba7051.js.map
 12K	chunks/pages/shared/mobile-8d61e8f9cf4f7f867474.js.map
224K	chunks/polyfills-7d3ba402b2d291c44b1d.js.map
 12K	chunks/webpack-857124bd14aea8f1b6fc.js.map
 24K	css/3da6c5a041c2c7c7036d.css.map
5.7M	total