默认情况下,如果没有为ps命令传递任何参数,则它将打印什么信息?
All processes running on the terminal
B. All active processes
C. All sleeping processes
D. All processes run by the current shell
E. All processes run by the current user
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Peter想找出是什么应用导致系统运行缓慢,他应该使用以下哪种工具类显示当前所有运行中的进程占用CPU的情况?
A. top
B. ps
C. lsof
D. free
E. uptime
Carol通过ps命令找到了某个进程的PID后,应该使用哪个工具来停止执行该进程?
A. killall
B. pkill
C. TERM
D. kill
E. pgrep
以下对/proc最好的描述是?
A. /proc contains information about files to be processed.
B. /proc contains configuration files for processes.
C. /proc contains information on currently running processes, including the kernel.
D. /proc contains variable data such as mail and web files.
以下哪条命令可以持续监控一个名为nagios的进程?
A. top -n 1
B. top -p 23
C. ps -nagios
D. top -p `pidof nagios`