RbCafe

Kill

Posted in Mac Os X Activity by RbCafe on the July 7th, 2006

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-operand(s).
erand(s).

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-identical
tical to this utility. Consult the builtin(1) manual page.

(more…)

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Kuncd

Posted in Mac Os X Activity by RbCafe on the July 7th, 2006

NAME

kuncd — The Kernel User Notification Center daemon.

DESCRIPTION

The Kernel User Notification Center daemon handles requests by software
executing in the kernel to display notices and alerts to the user. The
daemon also handles kernel reqeusts to execute user-space helper tools.

The daemon is launched by mach_init(8) when a request has been received
from the kernel and will exit 15 seconds after the last request has been
processed.

The daemon cannot be used directly by the user.

SIGNALS

SIGTERM This signal will result in the daemon unregistering itself from
mach_init and exiting. Once it is unregistered, it will not run
again until it is reregistered.

SEE ALSO

mach_init(8)

HISTORY

The kuncd daemon was introduced in Mac OS X 10.3.

NOTES

This daemon and its current behavior may change without notice. Do not
rely on its existence or its behavior. Consider it an unsupported com-command.
mand.

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