DragonFly On-Line Manual Pages


KILL(1) 	       DragonFly General Commands Manual	       KILL(1)

NAME

kill -- terminate or signal a process

SYNOPSIS

kill [-s signal_name] pid ... kill -l [exit_status] kill -signal_name pid ... kill -signal_number pid ...

DESCRIPTION

The kill utility sends a signal to the processes specified by the pid op- erands. Only the super-user may send signals to other users' processes. The options are as follows: -s signal_name A symbolic signal name specifying the signal to be sent instead of the default TERM. -l [exit_status] If no operand is given, list the signal names; otherwise, write the signal name corresponding to exit_status. -signal_name A symbolic signal name specifying the signal to be sent instead of the default TERM. -signal_number A non-negative decimal integer, specifying the signal to be sent instead of the default TERM. The following PIDs have special meanings: -1 If superuser, broadcast the signal to all processes; otherwise broadcast to all processes belonging to the user. Some of the more commonly used signals: 1 HUP (hang up) 2 INT (interrupt) 3 QUIT (quit) 6 ABRT (abort) 9 KILL (non-catchable, non-ignorable kill) 14 ALRM (alarm clock) 15 TERM (software termination signal) Some shells may provide a builtin kill command which is similar or iden- tical to this utility. Consult the builtin(1) manual page.

EXIT STATUS

The kill utility exits 0 on success, and >0 if an error occurs.

EXAMPLES

Terminate the processes with PIDs 142 and 157: kill 142 157 Send the hangup signal (SIGHUP) to the process with PID 507: kill -s HUP 507 Terminate the process group with PGID 117: kill -- -117

SEE ALSO

builtin(1), csh(1), killall(1), ps(1), sh(1), kill(2), sigaction(2)

STANDARDS

The kill utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compati- ble.

HISTORY

A kill command appeared in Version 3 AT&T UNIX.

BUGS

A replacement for the command ``kill 0'' for csh(1) users should be pro- vided. DragonFly 3.7 April 28, 1995 DragonFly 3.7