在centos系统里可以通过lm_sensors来查看CPU的温度(当然你的硬件首先要支持）,要使用这个功能要有内核相关模块(比如I2C)的支持，下面说一下操作方法：
先看一下你的机器上是否安装了lm_sensors,
$$ rpm -q lm_sensors
如果没有安装就先安装一下
$$ sudo yum install -y lm_sensors
检测传感器：
$$ sudo sh -c "yes|sensors-detect"
如果以上步骤没有问题，执行下面的命令就可以查看CPU的温度了：
$$ sensors
Adapter: ISA adapter
in0: +1.07 V (min = +0.00 V, max = +4.08 V)
in1: +1.82 V (min = +0.00 V, max = +4.08 V)
in2: +3.36 V (min = +0.00 V, max = +4.08 V)
in3: +2.94 V (min = +0.00 V, max = +4.08 V)
in4: +0.29 V (min = +0.00 V, max = +2.10 V)
in5: +4.08 V (min = +0.00 V, max = +4.08 V) ALARM
in6: +4.08 V (min = +0.00 V, max = +4.08 V) ALARM
in7: +3.07 V (min = +0.00 V, max = +4.08 V)
in8: +3.09 V
fan1: 2463 RPM (min = 0 RPM)
fan2: 0 RPM (min = 0 RPM)
temp1: -55 C (low = +127 C, high = +127 C) sensor = thermistor
temp2: -2 C (low = +127 C, high = +127 C) sensor = thermistor
temp3: +21 C (low = +127 C, high = +127 C) sensor = diode
vid: +2.050 V
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +44 C (high = +100 C)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +27 C (high = +100 C)
it8718-isa-0290
Adapter: ISA adapter
in0: +1.07 V (min = +0.00 V, max = +4.08 V)
in1: +1.82 V (min = +0.00 V, max = +4.08 V)
in2: +3.36 V (min = +0.00 V, max = +4.08 V)
in3: +2.94 V (min = +0.00 V, max = +4.08 V)
in4: +0.29 V (min = +0.00 V, max = +2.10 V)
in5: +4.08 V (min = +0.00 V, max = +4.08 V) ALARM
in6: +4.08 V (min = +0.00 V, max = +4.08 V) ALARM
in7: +3.07 V (min = +0.00 V, max = +4.08 V)
in8: +3.09 V
fan1: 2463 RPM (min = 0 RPM)
fan2: 0 RPM (min = 0 RPM)
temp1: -55 C (low = +127 C, high = +127 C) sensor = thermistor
temp2: -2 C (low = +127 C, high = +127 C) sensor = thermistor
temp3: +21 C (low = +127 C, high = +127 C) sensor = diode
vid: +2.050 V
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +44 C (high = +100 C)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +27 C (high = +100 C)
