MacBook temperature monitor

To get temperature info from your MacBook's temperature (SMC) monitor on the command line go get InCrew's speedit kernel extension. From the Terminal go the downloaded directory and run their install program:

% sudo sh install.sh

It should say:

kextload: speedit.kext loaded successfully

To read out the temperatures from the loaded kernel extension use the systctl command:

$ sysctl kern.cpu_temp
kern.cpu_temp: 52

or to read all speedit monitored info try:

$ sysctl speedit
speedit.currentfreq: 1000
speedit.minfreq: 1000
speedit.maxfreq: 2000
speedit.temp_is_valid: 1
speedit.temp: 52