当我开始使用命令来终止正在进行的进程时，我可以包含一个信号。
信号 9与信号之间有什么区别15？
答案1
有一个手册页这里- 我认为你指的是：
Signal Value Action Comment
-------------------------------------------------------------------------
SIGKILL 9 Term Kill signal
SIGTERM 15 Term Termination signal
以下是一些其他信号：
Ctrl+C终端中正在运行的进程发送键盘中断信号：
SIGINT2 Term Interrupt from keyboard。这并不总会直接停止程序，通常它只会完成正在执行的那部分然后停止。Ctrl+\在终端中正在运行的进程上发送退出信号：
SIGQUIT3 Core Quit from keyboard发送的默认信号
killall PROCESS-NAME是SIGTERM15 Term Termination signaltop。这也是按下k并进入流程时发送的默认消息PID
为了确保某个进程停止，您可以使用SIGKILL（或者，SIGSTOP），因为该进程无法被程序捕获、阻止或忽略。
以下是上述链接中的更长的列表，供参考：
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 tty
SIGTTIN 21,21,26 Stop tty input for background process
SIGTTOU 22,22,27 Stop tty output for background process
The signals SIGKILL and SIGSTOP cannot be caught, blocked, or ignored.
Next the signals not in the POSIX.1-1990 standard but described in
SUSv2 and POSIX.1-2001.
Signal Value Action Comment
-------------------------------------------------------------------------
SIGBUS 10,7,10 Core Bus error (bad memory access)
SIGPOLL Term Pollable event (Sys V). Synonym of SIGIO
SIGPROF 27,27,29 Term Profiling timer expired
SIGSYS 12,-,12 Core Bad argument to routine (SVr4)
SIGTRAP 5 Core Trace/breakpoint trap
SIGURG 16,23,21 Ign Urgent condition on socket (4.2BSD)
SIGVTALRM 26,26,28 Term Virtual alarm clock (4.2BSD)
SIGXCPU 24,24,30 Core CPU time limit exceeded (4.2BSD)
SIGXFSZ 25,25,31 Core File size limit exceeded (4.2BSD)
Up to and including Linux 2.2, the default behaviour for SIGSYS, SIGX-
CPU, SIGXFSZ, and (on architectures other than SPARC and MIPS) SIGBUS
was to terminate the process (without a core dump). (On some other
Unices the default action for SIGXCPU and SIGXFSZ is to terminate the
process without a core dump.) Linux 2.4 conforms to the POSIX.1-2001
requirements for these signals, terminating the process with a core
dump.
Next various other signals.
Signal Value Action Comment
--------------------------------------------------------------------
SIGIOT 6 Core IOT trap. A synonym for SIGABRT
SIGEMT 7,-,7 Term
SIGSTKFLT -,16,- Term Stack fault on coprocessor (unused)
SIGIO 23,29,22 Term I/O now possible (4.2BSD)
SIGCLD -,-,18 Ign A synonym for SIGCHLD
SIGPWR 29,30,19 Term Power failure (System V)
SIGINFO 29,-,- A synonym for SIGPWR
SIGLOST -,-,- Term File lock lost
SIGWINCH 28,28,20 Ign Window resize signal (4.3BSD, Sun)
SIGUNUSED -,31,- Term Unused signal (will be SIGSYS)
(Signal 29 is SIGINFO / SIGPWR on an alpha but SIGLOST on a sparc.)
SIGEMT is not specified in POSIX.1-2001, but nevertheless appears on
most other Unices, where its default action is typically to terminate
the process with a core dump.
SIGPWR (which is not specified in POSIX.1-2001) is typically ignored by
default on those other Unices where it appears.
SIGIO (which is not specified in POSIX.1-2001) is ignored by default on
several other Unices.