Pi Zero USB OTG without cable reconnect?

[HermannSW]

I have successfully enabled USB OTG for one of my Pi Zeros (by these simple instructions).

I can boot the other Pi Zeros via switches of 7 port USB hub.

I have connected the Pi Zero via USB, logged in via ssh and did "sudo shutdown 0".
Is it possible to boot this Pi now without disconnecting and reconnecting USB cable?
Is there some command I can use to simulate powering on?
(from Linux laptop where the Pi Zero is connected to)

[rpdom]

Once shut down there are only three ways to restart a Pi (Zero or any other model).

1. Pull the power and reconnect it.

2. Briefly short together the two pins (holes on the Zero) marked "RUN".

3. Briefly short together pins 5 and 6 on the GPIO connector (GPIO 3 and GND).

[HermannSW]

> 2. Briefly short together the two pins (holes on the Zero) marked "RUN".
>
Thank you, I forgot about the Run pins, just tested and the (still connected) Pi Zero immediately began to boot.

[fanoush]

Also there is often a way to turn off USB power programatically for single port or for some subset. On Pi3 you can turn off power to usb ethernet or to all other four ports together.