Signal:
| "SIGHUP"
| "SIGINT"
| "SIGQUIT"
| "SIGILL"
| "SIGTRAP"
| "SIGABRT"
| "SIGBUS"
| "SIGFPE"
| "SIGKILL"
| "SIGUSR1"
| "SIGSEGV"
| "SIGUSR2"
| "SIGPIPE"
| "SIGALRM"
| "SIGTERM"
| "SIGSTKFLT"
| "SIGCHLD"
| "SIGCONT"
| "SIGSTOP"
| "SIGTSTP"
| "SIGTTIN"
| "SIGTTOU"
| "SIGURG"
| "SIGXCPU"
| "SIGXFSZ"
| "SIGVTALRM"
| "SIGPROF"
| "SIGWINCH"
| "SIGPOLL"
| "SIGPWR"
| "SIGSYS"