exec() system calls (Cont’d)

exec() system calls (Cont’d)

􀁺 Unlike the other system calls and subroutines,
a successful exec system call does not return.
Instead, control is given to the executable
binary file named as the first argument.
􀁺 When that file is made into a process, that
process replaces the process that executed
the exec system call -- a new process is not
created.