KILL(II) 12/15/74 KILL(II)





KILL(II)                    12/15/74                     KILL(II)







NAME

     kill  -  send signal to a process



SYNOPSIS

     (kill = 37.; not in assembler)

     (process number in r0)

     sys kill; sig



     kill(pid, sig);



DESCRIPTION

     Kill sends the signal sig to the process  specified  by  the

     process  number  in  r0.   See  signal  (II)  for  a list of

     signals.



     The sending and  receiving  processes  must  have  the  same

     effective  user ID, otherwise this call is restricted to the

     super-user.



     If the process number is 0, the signal is sent to all  other

     processes  which  have  the  same controlling typewriter and

     user ID.



     In no case is it possible for a process to kill itself.



SEE ALSO

     signal (II), kill (I)



DIAGNOSTICS

     The error bit (c-bit) is set if the process  does  not  have

     the  same  effective user ID and the user is not super-user,

     or if the process does not exist.  From C, -1 is returned.
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