DISCRIPTION->
Pipe-> it is a unidirectional channel that is used in inter process commmunication ,in pipe two file discriptor is used these are fd(0)=read & fd(1)=write
RETURN VALUE->
on success zero is returned,if error -1 is returned
DISCRIPTION->
Pipe-> it is a unidirectional channel that is used in inter process commmunication ,in pipe two file discriptor is used these are fd(0)=read & fd(1)=write
RETURN VALUE->
on success zero is returned,if error -1 is returned
