getpid(2)                                               getpid(2)



     NAME
          getpid, getpgrp, getppid - get process, process group, and
          parent process IDs

     SYNOPSIS
          int getpid ()

          int getpgrp ()

          int getppid ()

     DESCRIPTION
          getpid returns the process ID of the calling process.

          getpgrp returns the process group ID of the calling process.

          getppid returns the parent process ID of the calling
          process.

          These system calls are useful for generating uniquely-named
          temporary files.

     SEE ALSO
          exec(2), fork(2), intro(2), setpgrp(2), signal(3).































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