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常规篇:

首先,用ps查看进程,方法如下:

$ ps -ef

……
smx 1822 1 0 11:38 "htmlcode">
……

smx 1822 0.1 0.8 58484 18152 "htmlcode">
smx 1827 1 4 11:38 "-9" 即发送的信号是9,pkill与kill在这点的差别是:pkill无须 “s”,终止信号等级直接跟在 “-“ 后面。之前我一直以为是 "-s 9",结果每次运行都无法终止进程。

改进10——killall:

killall和pkill是相似的,不过如果给出的进程名不完整,killall会报错。pkill或者pgrep只要给出进程名的一部分就可以终止进程。

$killall -9 firefox

附录:各种信号及其用途

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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