kill man page on UNIXv7

kill man page on UNIXv7

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KILL(2)								       KILL(2)

NAME
       kill  -	send signal to a process

SYNOPSIS
       kill(pid, sig);

DESCRIPTION
       Kill  sends the signal sig to the process specified by the process num‐
       ber in r0.  See signal(2) 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
       in the sender's process group; see tty(4).

       If the process number is -1, and the user is the super-user, the signal
       is broadcast universally except to processes 0 and 1, the scheduler and
       initialization processes, see init(8).

       Processes may send signals to themselves.

SEE ALSO
       signal(2), kill(1)

DIAGNOSTICS
       Zero is returned if the process	is  killed;  -1	 is  returned  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.

ASSEMBLER
       (kill = 37.)
       (process number in r0)
       sys kill; sig

								       KILL(2)

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