All about programming in GNU/LINUX

Signals and Description of Default action in GNU/LINUX

Signals and Description of Default action

 

  1. SIGABRT Sent by abort( ) Terminate with core dump

  2. SIGALRM Sent by alarm( ) Terminate

  3. SIGBUS Hardware or alignment error Terminate with core dump

  4. SIGCHLD Child has terminated Ignored

  5. SIGCONT Process has continued after being stopped Ignored

  6. SIGFPE Arithmetic exception Terminate with core dump

  7. SIGHUP Process’s controlling terminal was closed (most frequently, Terminate the user logged out)

  8. SIGILL Process tried to execute an illegal instruction Terminate with core dump SIGINT User generated the interrupt character (Ctrl-C) Terminate

  9. SIGIO Asynchronous I/O event Terminate

  10. SIGKILL Uncatchable process termination Terminate

  11. SIGPIPE Process wrote to a pipe but there are no readers Terminate

  12. SIGPROF Profiling timer expired Terminate

  13. SIGPWR Power failure Terminate

  14. SIGQUIT User generated the quit character (Ctrl-\) Terminate with core dump

  15. SIGSEGV Memory access violation Terminate with core dump

  16. SIGSTKFLT Coprocessor stack fault Terminate

  17. SIGSTOP Suspends execution of the process Stop

  18. SIGSYS Process tried to execute an invalid system call Terminate with core dump

  19. SIGTERM Catchable process termination Terminate

  20. SIGTRAP Break point encountered Terminate with core dump

  21. SIGTSTP User generated the suspend character (Ctrl-Z) Stop

  22. SIGTTIN Background process read from controlling terminal Stop

  23. SIGTTOU Background process wrote to controlling terminal Stop

  24. SIGURG Urgent I/O pending Ignored

  25. SIGUSR1 Process-defined signal Terminate

  26. SIGUSR2 Process-defined signal Terminate

  27. SIGVTALRM Generated by setitimer( ) when called with the Terminate ITIMER_VIRTUAL flag

  28. SIGWINCH Size of controlling terminal window changed Ignored

  29. SIGXCPU Processor resource limits were exceeded Terminate with core dump

  30. SIGXFSZ File resource limits were exceeded Terminate with core dump

 

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