linux kill

1，查找进程

    ps -ef | grep shutdown(进程名)

    pgrep shutdown 查找shutdown进程名的pid

    pidof shutdown（shutdown必须是进程名的全称）

2,停止进程

    2.1， kill -s 9 pid

    2.2,  pkill shutdown（进程名，能够是名称一部分）

    2.3,  killall -9 shutdown(进程名必须是完整的）

    2.4，grep shutdown ｜xargs kill -s 9

附录：各类信号及其用途

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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