June 12

Question 1

fork

Answer 1

creates a child process
calls and creates a duplicate of the currently runnning program
each run cocurrently and independently

fork takes no arguemnts and returns process ID

Question 2

fork returns

Answer 2

0 to the child
PID to parent
on failure fork returns -1

Question 3

wait

Answer 3

suspends till one child terminates
return PID of terminated child
return -1 if doesnt have any child processes