SIGABRT - process aborted
SIGALRM - signal raised by alarm
SIGBUS - bus error: "access to undefined portion of memory object"
SIGCHLD - child process terminated, stopped (*or continued)
SIGCONT - continue if stopped
SIGFPE - floating point exception: "erroneous arithmetic operation"
SIGHUP - hangup
SIGILL - illegal instruction
SIGINT - interrupt
SIGKILL - kill
SIGPIPE - write to pipe with no one reading
SIGQUIT - quit
SIGSEGV - segmentation violation
SIGSTOP - stop executing temporarily
SIGTERM - termination
SIGTSTP - terminal stop signal
SIGTTIN - background process attempting to read ("in")
SIGTTOU - background process attempting to write ("out")
SIGUSR1 - user defined 1
SIGUSR2 - user defined 2

• SIGPOLL - pollable event
• SIGPROF - profiling timer expired
• SIGSYS - bad syscall
• SIGTRAP - trace/breakpoint trap
SIGURG - urgent data available on socket
• SIGVTALRM - signal raised by timer counting virtual time: "virtual timer expired"
• SIGXCPU - CPU time limit exceeded
• SIGXFSZ - file size limit exceeded