And here's a descriptive list of signals from Solaris's signals.h (which
is UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T). Sometimes it's fun to
kill -SEGV stuff. STOP and CONT also let you suspend and resume stuff if
you don't have a shell with job control (ie if its a daemon, or you
started it from the menu in X).
#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt (rubout) */
#define SIGQUIT 3 /* quit (ASCII FS) */
#define SIGILL 4 /* illegal instruction (not reset when caught) */
#define SIGTRAP 5 /* trace trap (not reset when caught) */
#define SIGIOT 6 /* IOT instruction */
#define SIGABRT 6 /* used by abort, replace SIGIOT in the future */
#define SIGEMT 7 /* EMT instruction */
#define SIGFPE 8 /* floating point exception */
#define SIGKILL 9 /* kill (cannot be caught or ignored) */
#define SIGBUS 10 /* bus error */
#define SIGSEGV 11 /* segmentation violation */
#define SIGSYS 12 /* bad argument to system call */
#define SIGPIPE 13 /* write on a pipe with no one to read it */
#define SIGALRM 14 /* alarm clock */
#define SIGTERM 15 /* software termination signal from kill */
#define SIGUSR1 16 /* user defined signal 1 */
#define SIGUSR2 17 /* user defined signal 2 */
#define SIGCLD 18 /* child status change */
#define SIGCHLD 18 /* child status change alias (POSIX) */
#define SIGPWR 19 /* power-fail restart */
#define SIGWINCH 20 /* window size change */
#define SIGURG 21 /* urgent socket condition */
#define SIGPOLL 22 /* pollable event occured */
#define SIGIO SIGPOLL /* socket I/O possible (SIGPOLL alias) */
#define SIGSTOP 23 /* stop (cannot be caught or ignored) */
#define SIGTSTP 24 /* user stop requested from tty */
#define SIGCONT 25 /* stopped process has been continued */
#define SIGTTIN 26 /* background tty read attempted */
#define SIGTTOU 27 /* background tty write attempted */
#define SIGVTALRM 28 /* virtual timer expired */
#define SIGPROF 29 /* profiling timer expired */
#define SIGXCPU 30 /* exceeded cpu limit */
#define SIGXFSZ 31 /* exceeded file size limit */
#define SIGWAITING 32 /* process's lwps are blocked */
#define SIGLWP 33 /* special signal used by thread library */
#define SIGFREEZE 34 /* special signal used by CPR */
#define SIGTHAW 35 /* special signal used by CPR */
#define SIGCANCEL 36 /* thread cancellation signal used by libthread */
#define SIGLOST 37 /* resource lost (eg, record-lock lost) */
/* insert new signals here, and move _SIGRTM* appropriately */
#define _SIGRTMIN 38 /* first (highest-priority) realtime signal */
#define _SIGRTMAX 45 /* last (lowest-priority) realtime signal */
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