Is it possible invoke sqlplus(black) from toad to run some sql scripts

Hi Experts,

I am curious to find whether possible to invoke sqlplus command prompt from toad to run some of sql scripts.
Also, I have configured cygwin to run sql scripts and also connect to server using ssh.
As i cannot to server from toad using ssh, i m curious whether i can invoke the cygwin/sqlplus command prompt so that i can run desired commands

Please help me