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kill.md

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Linux kill Command

Command Introduction (命令介绍)

kill - terminate a process

Command Format and Options (命令格式和选项)

#man kill
kill [-s signal|-p] [-q sigval] [-a] [--] pid...
       kill -l [signal]

Command Example (命令范例)


  kill

  Sends a signal to a process, usually related to stopping the process.
  All signals except for SIGKILL and SIGSTOP can be intercepted by the process to perform a clean exit.

  - Terminate a program using the default SIGTERM (terminate) signal:
    kill process_id

  - List available signal names (to be used without the SIG prefix):
    kill -l

  - Terminate a program using the SIGHUP (hang up) signal. Many daemons will reload instead of terminating:
    kill -1|HUP process_id

  - Terminate a program using the SIGINT (interrupt) signal. This is typically initiated by the user pressing Ctrl + C:
    kill -2|INT process_id

  - Signal the operating system to immediately terminate a program (which gets no chance to capture the signal):
    kill -9|KILL process_id

  - Signal the operating system to pause a program until a SIGCONT ("continue") signal is received:
    kill -17|STOP process_id

  - Send a SIGUSR1 signal to all processes with the given GID (group id):
    kill -SIGUSR1 -group_id