Not sure what you are attempting to do.  Have a look at kill or slay.

From a shell, you can terminate a process using the slay command and the name of the process you are terminating.
You could also kill a process with a SIGTERM or SIGKILL signal.  

If you are trying to terminate a process and restart it again within a shell using a single command line, then:

# slay process_name ; process_name

But I may not understand what you are trying to accomplish.  Hopefully this is enough to allow you look in the right 
location in the documentation.

Dave