**** `OpenCOBOL``SUB``MAIN`
`OpenCOBOL`
cobc -x --free MAIN.cob SUB.cob
$ ./MAIN
In Called Program
Student Id : 1111
Student Name : Tim
**** `OpenCOBOL``SUB``MAIN`
`OpenCOBOL`
cobc -x --free MAIN.cob SUB.cob
$ ./MAIN
In Called Program
Student Id : 1111
Student Name : Tim