How to run multiple streams in a single gulp task.

multiple-gulp-streams.js

var es = require("event-stream");
var gulp = require("gulp");

// Important! If these tasks need to be ran sequentially, then specify the
// task(s) that need to be ran prior to these ones as a dependency.
gulp.task("move-files", function() {
  return es.merge([
    gulp.src("foo").pipe(gulp.dest("dist/")),
    gulp.src("bar").pipe(gulp.dest("dist/")),
    gulp.src("baz").pipe(gulp.dest("dist/")),
    gulp.src("qux").pipe(gulp.dest("dist/"))
  ])
});