How to monitor temperatures of laptop on Linux

How to monitor temperatures of laptop on Linux?

This works on Linux Mint:

sudo aptitude install lm-sensors hddtemp

For lm-sensors, first detect the sensors by:

sudo sensors-detect

To detect the temperature in the system:

sudo sensors

To detect the HDD (e.g. sda) temperature:

sudo hddtemp /dev/sda

An example of the output:

[zma@mini:~]$ sudo sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:        +69.0°C  (crit = +100.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +51.0°C  (crit = +90.0°C)

[zma@mini:~]$ sudo hddtemp /dev/sda
/dev/sda: WDC WD1600BEVT-60ZCT1: 49°C

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Note that on Fedora 22, the packages are named:

lm_sensors hddtemp

for checking the sensor degrees.