| Signal | Description | 
| 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 (terminate immediately) | 
| SIGPIPE | Write to pipe with no one reading | 
| SIGQUIT | Quit and dump core | 
| SIGSEGV | Segmentation violation | 
| SIGSTOP | Stop executing temporarily | 
| SIGTERM | Termination (request to terminate) | 
| SIGTSTP | Terminal stop signal | 
| SIGTTIN | Background process attempting to read from tty ("in") | 
| SIGTTOU | Background process attempting to write to tty ("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 |