enabling and disable bgp peer in putty

RouterOS Beginner Basics
1

Hello, with what command disable i bgp peer in putty via ssh?

2

/routing bgp peer
print
set 0 disabled=yesChange “0” to the index for the peer that you want to disable.

3

I want a script thats see if bgp peer is down
If the bgp peer is down that netwatch can activate a peer2

How can a script see if the bgp peer is down?