Processes Termination

• Orphan process

  • a process whose parent is the init process (pid 1) because its original parent died before it did

• Terminating a process: exit()

• System call:

  int exit( int status )
  

• Every normal process is a child of some parent, a terminating process sends its parent a SIGCHLD signal and waits for its termination code status to be accepted

• The C shell stores the termination code of the last command in the local shell variable status

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