Salut à tous,
je viens de tuer un processus récalcitrant avec kill -9, en cherchant un peu sur le net j'ai vu des gens qui utilisaient le signal 15, je suis allé chercher le man de signal et voici ce que j'ai trouvé sur les différents signaux.

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   Standard Signals
       Linux  supports  the  standard  signals listed below.  Several signal numbers are architecture-dependent, as indicated in the "Value" column.  (Where three values are
       given, the first one is usually valid for alpha and sparc, the middle one for ix86, ia64, ppc, s390, arm and sh, and the last one for mips.  A - denotes that a signal
       is absent on the corresponding architecture.)

       First the signals described in the original POSIX.1-1990 standard.

       Signal     Value     Action   Comment
       ----------------------------------------------------------------------
       SIGHUP        1       Term    Hangup detected on controlling terminal
                                     or death of controlling process
       SIGINT        2       Term    Interrupt from keyboard
       SIGQUIT       3       Core    Quit from keyboard
       SIGILL        4       Core    Illegal Instruction
       SIGABRT       6       Core    Abort signal from abort(3)
       SIGFPE        8       Core    Floating point exception
       SIGKILL       9       Term    Kill signal
       SIGSEGV      11       Core    Invalid memory reference
       SIGPIPE      13       Term    Broken pipe: write to pipe with no
                                     readers
       SIGALRM      14       Term    Timer signal from alarm(2)
       SIGTERM      15       Term    Termination signal
       SIGUSR1   30,10,16    Term    User-defined signal 1
       SIGUSR2   31,12,17    Term    User-defined signal 2
       SIGCHLD   20,17,18    Ign     Child stopped or terminated
       SIGCONT   19,18,25    Cont    Continue if stopped
       SIGSTOP   17,19,23    Stop    Stop process
       SIGTSTP   18,20,24    Stop    Stop typed at tty
       SIGTTIN   21,21,26    Stop    tty input for background process
       SIGTTOU   22,22,27    Stop    tty output for background process

       The signals SIGKILL and SIGSTOP cannot be caught, blocked, or ignored.

Quelle est la différence entre le signal 9 et le signal 15 ?
Lequel vaut il mieux utiliser ?

merci d'avance,
ben