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kill 信号及用途
| Signal | Description | Signal number on Linux x86[1] |
|---|---|---|
| SIGABRT | Process aborted | 6 |
| SIGALRM | Signal raised by alarm | 14 |
| SIGBUS | Bus error: "access to undefined portion of memory object" | 7 |
| SIGCHLD | Child process terminated, stopped (or continued*) | 17 |
| SIGCONT | Continue if stopped | 18 |
| SIGFPE | Floating point exception: "erroneous arithmetic operation" | 8 |
| SIGHUP | Hangup | 1 |
| SIGILL | Illegal instruction | 4 |
| SIGINT | Interrupt | 2 |
| SIGKILL | Kill (terminate immediately) | 9 |
| SIGPIPE | Write to pipe with no one reading | 13 |
| SIGQUIT | Quit and dump core | 3 |
| SIGSEGV | Segmentation violation | 11 |
| SIGSTOP | Stop executing temporarily | 19 |
| SIGTERM | Termination (request to terminate) | 15 |
| SIGTSTP | Terminal stop signal | 20 |
| SIGTTIN | Background process attempting to read from tty ("in") | 21 |
| SIGTTOU | Background process attempting to write to tty ("out") | 22 |
| SIGUSR1 | User-defined 1 | 10 |
| SIGUSR2 | User-defined 2 | 12 |
| SIGPOLL | Pollable event | 29 |
| SIGPROF | Profiling timer expired | 27 |
| SIGSYS | Bad syscall | 31 |
| SIGTRAP | Trace/breakpoint trap | 5 |
| SIGURG | Urgent data available on socket | 23 |
| SIGVTALRM | Signal raised by timer counting virtual time: "virtual timer expired" | 26 |
| SIGXCPU | CPU time limit exceeded | 24 |
| SIGXFSZ | File size limit exceeded | 25 |
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