bosskill(8) [debian man page]
BOSSKILL(8) System Manager's Manual BOSSKILL(8) NAME
bosskill - send a signal to your boss, or terminate your boss SYNOPSIS
bosskill [ -signal ] <bossname> DESCRIPTION
bosskill sends the TERM (terminate, 15) signal to the boss with the specified bossname. If a signal name or number preceded by `-' is given as the first argument, that signal is sent instead of terminate. The killed boss must be in the system administrator's supervisory chain. The following is a list of all signals with names as in the include file <signal.h>: SIGHUP 1 hangup. Forces bossname to re-read his/her job description and figure out that he/she knows squat about sysadmin work or life, in general. SIGINT 2 interrupt. Prevents the bossname from interrupting the sysadmin for one hour. SIGQUIT 3 quit. Causes the boss to quit his/her job with no explanation. SIGILL 4 illegal instruction. Makes the boss believe the last instruction he/she gave was illegal, so he/she withdraws it. SIGTRAP 5 trace trap. Display the exact location of the boss. SIGABRT 6 abort. Makes the boss go home and try again tomorrow. SIGKILL 9 kill. Game over. SIGBUS 10 bus error. Boss's transportation fails on the way to work. SIGSEGV 11 segmentation violation. Boss realizes he/she is trying to do something for which he/she is not quailified and stops. SIGSYS 12 bad argument. Boss loses. SIGPIPE 13 smoke pipe. Boss samples some green leafy substance and mellows out. SIGALRM 14 alarm. Boss is startled and falls over. Best used when boss is walking next to his/her boss. SIGTERM 15 termination signal. Boss is fired. BUGS
Sending a SIGABRT to a boss that is already home will cause him/her to walk aimlessly in circles for two hours. HISTORY
Written by Eric L. Pederson <eric@bofh.org.uk>. 27 September 1995 BOSSKILL(8)
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SIGNAL(7) BSD Miscellaneous Information Manual SIGNAL(7) NAME
signal -- signal facilities DESCRIPTION
The <signal.h> header file defines the following signals: Value Name Default Action Description 1 SIGHUP terminate process terminal line hangup 2 SIGINT terminate process interrupt program 3 SIGQUIT create core image quit program 4 SIGILL create core image illegal instruction 5 SIGTRAP create core image trace trap 6 SIGABRT create core image abort(3) call (formerly SIGIOT) 7 SIGEMT create core image emulate instruction executed 8 SIGFPE create core image floating-point exception 9 SIGKILL terminate process kill program (cannot be caught or ignored) 10 SIGBUS create core image bus error 11 SIGSEGV create core image segmentation violation 12 SIGSYS create core image invalid system call argument 13 SIGPIPE terminate process write to a pipe with no reader 14 SIGALRM terminate process real-time timer expired 15 SIGTERM terminate process software termination signal 16 SIGURG discard signal urgent condition present on socket 17 SIGSTOP stop process stop (cannot be caught or ignored) 18 SIGTSTP stop process stop signal generated from keyboard 19 SIGCONT discard signal continue after stop (even if blocked or ignored) 20 SIGCHLD discard signal child status has changed 21 SIGTTIN stop process background read attempted from control terminal 22 SIGTTOU stop process background write attempted to control terminal 23 SIGIO discard signal I/O is possible on a descriptor (see fcntl(2)) 24 SIGXCPU terminate process CPU time limit exceeded (see setrlimit(2)) 25 SIGXFSZ terminate process file size limit exceeded (see setrlimit(2)) 26 SIGVTALRM terminate process virtual time alarm (see setitimer(2)) 27 SIGPROF terminate process profiling timer alarm (see setitimer(2)) 28 SIGWINCH discard signal window size change 29 SIGINFO discard signal status request from keyboard 30 SIGUSR1 terminate process user-defined signal 1 31 SIGUSR2 terminate process user-defined signal 2 32 SIGPWR discard signal power failure/restart A function that is async-signal-safe is either reentrant or non-interruptible by signals. This means that they can be used in signal han- dlers and in the child of threaded programs after doing fork(2). The following functions are async-signal-safe. Any function not listed below is unsafe to use in signal handlers. _Exit(2), _exit(2), abort(3), accept(2), access(2), alarm(3), bind(2), cfgetispeed(3), cfgetospeed(3), cfsetispeed(3), cfsetospeed(3), chdir(2), chmod(2), chown(2), clock_gettime(2), close(2), connect(2), creat(3), dup(2), dup2(2), execle(3), execve(2), fchmod(2), fchown(2), fcntl(2), fdatasync(2), fork(2), fpathconf(2), fstat(2), fsync(2), ftruncate(2), getegid(2), geteuid(2), getgid(2), getgroups(2), getpeername(2), getpgrp(2), getpid(2), getppid(2), getsockname(2), getsockopt(2), getuid(2), kill(2), link(2), listen(2), lseek(2), lstat(2), mkdir(2), mkfifo(2), open(2), pathconf(2), pause(3), pipe(2), poll(2), raise(3), read(2), readlink(2), recv(2), recvfrom(2), recvmsg(2), rename(2), rmdir(2), select(2), sem_post(3), send(2), sendmsg(2), sendto(2), setgid(2), setpgid(2), setsid(2), setsockopt(2), setuid(2), shutdown(2), sigaction(2), sigaddset(3), sigdelset(3), sigemptyset(3), sigfillset(3), sigismember(3), sleep(3), signal(3), sigpause(3), sigpending(2), sigprocmask(2), sigset(3), sigsuspend(2), sockatmark(3), socket(2), socketpair(2), stat(2), symlink(2), sysconf(3), tcdrain(3), tcflow(3), tcflush(3), tcgetattr(3), tcgetpgrp(3), tcsendbreak(3), tcsetattr(3), tcsetpgrp(3), time(3), timer_getoverrun(2), timer_gettime(2), timer_settime(2), times(3), umask(2), uname(3), unlink(2), utime(3), wait(2), waitpid(2), write(2). SEE ALSO
kill(1), kill(2), ptrace(2), sigaction(2), sigaltstack(2), sigprocmask(2), sigstack(2), sigsuspend(2), fpgetmask(3), fpsetmask(3), setjmp(3), sigblock(3), siginterrupt(3), signal(3), sigpause(3), sigsetmask(3), sigsetops(3), tty(4) STANDARDS
These signals conform to ISO/IEC 9945-1:1990 (``POSIX.1''), with the exception of SIGTRAP, SIGEMT, SIGBUS, SIGSYS, SIGURG, SIGIO, SIGXCPU, SIGXFSZ, SIGVTALRM, SIGPROF, SIGWINCH, and SIGINFO which are Berkeley extensions (available on most BSD-derived systems), and SIGPWR which comes from System V. HISTORY
SIGPWR was introduced in NetBSD 1.4. NOTES
The current NetBSD kernel never generates the SIGPWR signal. BSD
February 27, 2009 BSD