When we do kill -l we get a list of all the signals that are supported, but is there any man page that describes each signal in detail?
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1 Answer
Yes, it's man 7 signal which, among other things, includes the following table:
Signal Value Action Comment
──────────────────────────────────────────────────────────────────────
SIGHUP 1 Term Hangup detected on controlling terminal
or death of controlling process
SIGINT 2 Term Interrupt from keyboard
SIGQUIT 3 Core Quit from keyboard
SIGILL 4 Core Illegal Instruction
SIGABRT 6 Core Abort signal from abort(3)
SIGFPE 8 Core Floating point exception
SIGKILL 9 Term Kill signal
SIGSEGV 11 Core Invalid memory reference
SIGPIPE 13 Term Broken pipe: write to pipe with no
readers
SIGALRM 14 Term Timer signal from alarm(2)
SIGTERM 15 Term Termination signal
SIGUSR1 30,10,16 Term User-defined signal 1
SIGUSR2 31,12,17 Term User-defined signal 2
SIGCHLD 20,17,18 Ign Child stopped or terminated
SIGCONT 19,18,25 Cont Continue if stopped
SIGSTOP 17,19,23 Stop Stop process
SIGTSTP 18,20,24 Stop Stop typed at terminal
SIGTTIN 21,21,26 Stop Terminal input for background process
SIGTTOU 22,22,27 Stop Terminal output for background process
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Hi , thanks , although one line for each , but something is better than nothing :) Apr 12, 2016 at 13:28
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8@IjazKhan that's a ~500 line man page. I only included the most relevant part, I suggest you read through it if you want more details.– terdon ♦Apr 12, 2016 at 13:29
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1@IjazKhan You can also try to find
error.hin your system's libraries, there's some self-documenting code there– catApr 12, 2016 at 15:07