On Tue, 12 Oct 1999, Amanda Knox wrote:
> > Did you try 'kill pid' or 'kill -9 pid'? 'kill -9' should bring down
> > anything.
> Why is it '-9' exactly? Are there different kill levels or something? What if
> I typed 'Kill -1'? Just curious, and I doubt I would have the know-how to
> find that exact answer in the man pages ;)
Signal Value Action Comment
-------------------------------------------------------------------------
SIGHUP 1 A Hangup detected on controlling
terminal
or death of controlling process
SIGINT 2 A Interrupt from keyboard
SIGQUIT 3 A Quit from keyboard
SIGILL 4 A Illegal Instruction
SIGABRT 6 C Abort signal from abort(3)
SIGFPE 8 C Floating point exception
SIGKILL 9 AEF Kill signal
SIGSEGV 11 C Invalid memory reference
SIGPIPE 13 A Broken pipe: write to pipe with no
readers
SIGALRM 14 A Timer signal from alarm(2)
SIGTERM 15 A Termination signal
SIGUSR1 30,10,16 A User-defined signal 1
SIGUSR2 31,12,17 A User-defined signal 2
SIGCHLD 20,17,18 B Child stopped or terminated
SIGCONT 19,18,25 Continue if stopped
SIGSTOP 17,19,23 DEF Stop process
SIGTSTP 18,20,24 D Stop typed at tty
SIGTTIN 21,21,26 D tty input for background process
SIGTTOU 22,22,27 D tty output for background process
(this is from signal(7) man page)
as you can see, 1 is a hangup (restarts the process in most cases), 9 is
an outright kill, and 6 is an abort. there are many others, that can be
found and described with man 7 signal.
-Ian (friendly neighbourhood guide)
--
<cosmo> wow, this is kinda nifty. the win98 protocol stack is
like a chinese finger puzzle, twist and turn in the right places,
and it pops right off --Seen on EFNet IRC
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