Table 1. Listing of Signals

Name Number Default
SIGHUP 1 Exit Hangup (ref termio(7I))
SIGINT 2 Exit Interrupt (ref termio(7I))
SIGQUIT 3 Core Quit (ref termio(7I))
SIGILL 4 Core Illegal Instruction
SIGTRAP 5 Core Trace or breakpoint trap
SIGABRT 6 Core Abort
SIGEMT 7 Core Emulation trap
SIGFPE 8 Core Arithmetic exception
SIGKILL 9 Exit Kill
SIGBUS 10 Core Bus error--a misaligned address error
SIGSEGV 11 Core Segmentation fault, an address reference boundary error
SIGSYS 12 Core Bad system call
SIGPIPE 13 Exit Broken pipe
SIGALRM 14 Exit Alarm clock
SIGTERM 15 Exit Terminated
SIGUSR1 16 Exit User defined signal 1
SIGUSR2 17 Exit User defined signal 2
SIGCHLD 18 Ignore Child process status changed
SIGPWR 19 Ignore Power fail or restart
SIGWINCH 20 Ignore Window size change
SIGURG 21 Ignore Urgent socket condition
SIGPOLL 22 Exit Pollable event (ref streamio(7I))
SIGSTOP 23 Stop Stop (cannot be caught or ignored)
SIGTSTP 24 Stop Stop (job control, e.g., CTRL-z))
SIGCONT 25 Ignore Continued
SIGTTIN 26 Stop Stopped--tty input (ref termio(7I))
SIGTTOU 27 Stop Stopped--tty output (ref termio(7I))
SIGVTALRM 28 Exit Virtual timer expired
SIGPROF 29 Exit Profiling timer expired
SIGXCPU 30 Core CPU time limit exceeded (ref getrlimit(2))
SIGXFSZ 31 Core File size limit exceeded (ref getrlimit(2))
SIGWAITING 32 Ignore Concurrency signal used by threads library
SIGLWP 33 Ignore Inter-LWP signal used by threads library
SIGFREEZE 34 Ignore Checkpoint suspend
SIGTHAW 35 Ignore Checkpoint resume
SIGCANCEL 36 Ignore Cancellation signal used by threads library
SIGLOST 37 Ignore Resource lost
SIGRTMIN 38 Exit Highest priority real-time signal
SIGRTMAX 45 Exit Lowest priority real-time signal

From Issue #73 Table of Contents