*查看CPU信息

  cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq  //查看cpu频率
  cat /sys/class/thermal/thermal_zone0/temp //查看CPU当前温度

  *查看内存信息

  free -h

  *查看存储信息

  df -h
 
  *查看USB设备

  lsusb