src/main/java/io/reactivex/Observable.java
@CheckReturnValue
    @SchedulerSupport(SchedulerSupport.NONE)
    public final Observable<T> skip(long count) {
        if (count <= 0) {
            return RxJavaPlugins.onAssembly(this);
        }
        return RxJavaPlugins.onAssembly(new ObservableSkip<T>(this, count));
    }
@CheckReturnValue
    @SchedulerSupport(SchedulerSupport.NONE)
    public final Observable<T> skip(long count) {
        if (count <= 0) {
            return RxJavaPlugins.onAssembly(this);
        }
        return RxJavaPlugins.onAssembly(new ObservableSkip<T>(this, count));
    }
Returns an Observable that skips the first {@code count} items emitted by the source ObservableSource and emits
the remainder.
<p>
<img width="640" height="305" src="https://raw.github.com/wiki/ReactiveX/RxJava/images/rx-operators/skip.png" alt="">
<dl>
<dt><b>Scheduler:</b></dt>
<dd>This version of {@code skip} does not operate by default on a particular {@link Scheduler}.</dd>
</dl>

@param count
the number of items to skip
@return an Observable that is identical to the source ObservableSource except that it does not emit the first
{@code count} items that the source ObservableSource emits
@see <a href="http://reactivex.io/documentation/operators/skip.html">ReactiveX operators documentation: Skip</a>