top命令交互快捷键

#top
top - :: up  :,   users,  load average: 0.17, 0.12, 0.14
Tasks:  total,    running,  sleeping,    stopped,    zombie
Cpu(s):  0.0%us,  0.2%sy,  0.0%ni, 99.7%id,  0.0%wa,  0.0%hi,  0.2%si,  0.0%st
Mem:   1004136k total,   794248k used,   209888k free,    38512k buffers
Swap:  2047996k total,        0k used,  2047996k free,   562340k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
   root           330m   S  0.0  0.8   :08.40 /usr/bin/python /usr/bin/fail2ban-server -b -s /var/run/fail2ban/fail2
   root           102m   S  0.0  0.5   :12.02 sshd: root@pts/,pts/
   postfix          S  0.0  0.4   :00.15 qmgr -l -t fifo -u
   root           208m   S  0.0  0.4   :00.07 smbd -D
   root             S  0.0  0.3   :01.00 /usr/libexec/postfix/master
   postfix          S  0.0  0.3   :00.11 pickup -l -t fifo -u
   root           208m    S  0.0  0.2   :00.08 smbd -D
   root           105m   S  0.0  0.2   :01.38 -bash
   root           105m   S  0.0  0.2   :00.04 -bash
   root           245m   S  0.0  0.2   :00.30 /sbin/rsyslogd -i /var/run/syslogd.pid -c
      root             S  0.0  0.1   :01.82 /sbin/init
   root              S  0.0  0.1   :00.01 rpc.mountd
   root             R  0.3  0.1   :00.64 top
   root           114m    S  0.0  0.1   :00.31 crond
   root              S  0.0  0.1   :00.00 /usr/sbin/sshd
   root              S  0.0  0.1   :00.00 xinetd -stayalive -pidfile /var/run/xinetd.pid
   rpc                S  0.0  0.1   :00.31 rpcbind
    root        -      S  0.0  0.1   :00.65 /sbin/udevd -d
   root        -      S  0.0  0.1   :00.13 auditd
   root               S  0.0  0.1   :00.00 /usr/sbin/vsftpd /etc/vsftpd/vsftpd.conf
   root               S  0.0  0.1   :00.00 rpc.idmapd
   root                S  0.0  0.1   :00.00 /sbin/mingetty /dev/tty4      

空格：立即刷新

P：根据CPU使用多少排序
    T：根据时间、累计排序

q：退出top命令

m：切换显示内存信息

t：切换显示进程和CPU状态信息

c： 切换显示命令名称和完整命令行

M： 根据内存的大小排序

W：将当前设置写入 ~/.toprc  文件中，这是top配置文件推荐方法

1: 显示或隐藏cpu内核个数