Dear all,
Can anyone tel me how to start the MWS server from UNIX OS? since i have found MWS.sh and setenv.sh inside the bin folder. could anyone tell me which one i need to run in order to start the MWS server? 
Have you looked at the MWS Administrator’s Guide?
There are at least 2 possibilities. Review
Chapter 5. Running My webMethods Server from the Command Line
in My_webMethods_Server_Administrators_Guide