Syntax for Terminal Command to Read CPU Temps

[T3chGuy77]

I'm attempting to write a script to use the ./smc to read CPU temperatures so I can monitor them with PRTG remotely. Currently if I try ./smc -r TC1C I get a message back saying "Error: specify a key to read. So apparently I have the syntax wrong as there are no examples in the ReadMe for this command. Can I get a little help please. Also can you include examples of each command in the ReadMe file so we can help ourselves. Thanks!

[T3chGuy77]

Go figure....I figured it out on my own. To read the CPU temperature value the syntax is as follows:

./smc -k TC1C -r

So now hopefully I can finish writing my script to read those values. I have a Mac Mini server 6,2 that might be overheating for some reason but now that I have a monitor running to control the fan speed it may never overheat again. Sad because the only thing this server does is run a simple licensing app to serve AutoDesk licenses to a lab of 20 WIndows machines.

[Alhadis]

You can also use powermetrics(8):

Text output (click to show output) sudo powermetrics --samplers smc -i1 -n1         **** SMC sensors **** CPU Thermal level: 0 GPU Thermal level: 0 IO Thermal level: 0 Fan: 1838.46 rpm CPU die temperature: 48.69 C GPU die temperature: 35.00 C CPU Plimit: 0.00 GPU Plimit (Int): 0.00 Number of prochots: 0

Machine-readable output (click to show output) sudo powermetrics --samplers smc -i1 -n1 -fplist <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>is_delta</key><true/> <key>elapsed_ns</key><integer>7663795</integer> <key>hw_model</key><string>MacBookPro16,1</string> <key>smc_version</key><string>Unknown</string> <key>efi_version</key><string>1715.5.0</string> <key>kern_osversion</key><string>21C52</string> <key>kern_bootargs</key><string>chunklist-security-epoch=0 -chunklist-no-rev2-dev</string> <key>kern_boottime</key><integer>1641036771</integer> <key>timestamp</key><date>2022-01-02T05:24:23Z</date> <key>smc</key> <dict> <key>cpu_thermal_level</key><integer>0</integer> <key>simulated_cpu_thermal_level</key><integer>0</integer> <key>gpu_thermal_level</key><integer>0</integer> <key>simulated_gpu_thermal_level</key><integer>0</integer> <key>io_thermal_level</key><integer>0</integer> <key>simulated_io_thermal_level</key><integer>0</integer> <key>fan</key><real>1847.3</real> <key>cpu_die</key><real>47.18</real> <key>cpu_die_power_target</key><real>98</real> <key>cpu_die_fan_target</key><real>93</real> <key>gpu_die</key><real>35.00</real> <key>gpu_die_power_target</key><real>98</real> <key>gpu_die_fan_target</key><real>93</real> <key>cpu_plimit</key><real>0.00</real> <key>gpu_plimit</key><real>0.00</real> <key>num_prochots</key><integer>0</integer> <key>cpu_prochot</key><false/> <key>smc_prochot</key><false/> </dict> </dict> </plist>

Of course, this requires superuser privileges, so it isn't a complete replacement for smcFanControl. But it's helpful to know.