FORK(3F)                COMMAND REFERENCE                FORK(3F)



NAME
     fork - create a copy of this process

SYNOPSIS
     integer function fork()

DESCRIPTION
     Fork creates a copy of the calling process.  The only
     distinction between the two processes is that the value
     returned to one of them (referred to as the parent process)
     will be the process ID of the copy.  The copy is usually
     referred to as the child process.  The value returned to the
     child process will be zero.

     All logical units open for writing are flushed before the
     fork to avoid duplication of the contents of I/O buffers in
     the external file(s).

     If the returned value is negative, it indicates an error and
     will be the negation of the system error code.  See
     perror(3f).

     A corresponding exec routine has not been provided because
     there is no satisfactory way to retain open logical units
     across the exec.  However, the usual function of fork/exec
     can be performed using system(3f).

FILES
     /usr/lib/libU77.a
                    f77 UTek system interface library.

DIAGNOSTICS
     If the returned value is negative, it indicates an error and
     will be the negation of the system error code.  See
     perror(3f).

SEE ALSO
     fork(2), wait(3f), kill(3f), system(3f), and perror(3f).

















Printed 3/13/89                                                 1

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