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top - 23:30:51 up 11:41, 2 users, load average: 0.84, 1.08, 0.80
Tasks: 73 total, 3 running, 70 sleeping, 0 stopped, 0 zombie
Cpu(s): 23.9%us, 3.3%sy, 0.0%ni, 72.4%id, 0.3%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 189860k total, 186416k used, 3444k free, 58000k buffers
Swap: 554200k total, 116k used, 554084k free, 36012k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
13802 root 16 0 6816 2296 1872 S 4.0 1.2 0:00.12 sshd
13808 root 16 0 6820 2300 1872 S 4.0 1.2 0:00.12 sshd
13810 root 15 0 6820 2300 1872 S 4.0 1.2 0:00.12 sshd
13803 root 15 0 6816 2296 1872 S 3.7 1.2 0:00.11 sshd
13804 root 15 0 6816 2296 1872 S 3.3 1.2 0:00.10 sshd
13800 root 15 0 6820 2348 1904 S 3.0 1.2 0:00.12 sshd
13806 sshd 15 0 6624 1252 884 S 1.0 0.7 0:00.03 sshd
13807 sshd 15 0 6624 1252 884 S 1.0 0.7 0:00.03 sshd
13811 sshd 15 0 6628 1256 884 S 1.0 0.7 0:00.03 sshd
13801 sshd 15 0 6628 1212 804 R 0.7 0.6 0:00.02 sshd
13805 sshd 15 0 6624 1252 884 S 0.7 0.7 0:00.02 sshd
13809 sshd 15 0 6628 1256 884 S 0.7 0.7 0:00.02 sshd
13747 qwb 15 0 2360 1116 876 R 0.3 0.6 0:00.07 top
1 root 15 0 1772 804 592 S 0.0 0.4 0:02.68 init
2 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/0
4 root 34 19 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/0

我没有登陆root



qwb@ubuntu:~$ w
23:34:53 up 11:45, 2 users, load average: 0.46, 0.86, 0.78
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
qwb tty1 - 23:24 9:49m 0.49s 0.48s -bash
qwb pts/0 192.168.0.101 23:30 1.00s 0.50s 0.02s w

看下pstree
看下ps e|grep
看下lsof
找出哪里启动的。