MacOS Support

[Anupal]

MacOS doesn't follow Linux style mapping of files to system information. But we do have useful CLI commands.

The main command I found for this is sysctl and sysctl -a gives all system information.
Specific commands

// total memory size
$ sysctl hw.memsize

// cpu info
$ sysctl hw.ncpu

$ sysctl vm.loadavg
vm.loadavg: { 1.31 1.85 2.00 }

RAM usage can be parsed using top -l 1. It pretty much gives us everything in single snapshot, but I am not sure about regex.
Also top commands seems to be slow, vm_stat is better option for RAM. The values will need to be computed.

Also Mac has a concept of Wired Memory. Need to read a bit about it.

Battery info can be fetched using pmset -g batt

References

• https://stackoverflow.com/questions/68780116/is-there-any-alternative-for-proc-in-macos
• https://www.adamnengland.com/2021/01/19/cpu-ram-data-in-your-os-x-terminal/
• https://stackoverflow.com/questions/28168054/how-to-get-cpu-utilisation-ram-utilisation-in-mac-from-commandline
• https://apple.stackexchange.com/questions/4286/is-there-a-mac-os-x-terminal-version-of-the-free-command-in-linux-systems
• https://coderwall.com/p/bechiq/macos-get-battery-percentage-from-command-line
• https://www.hexnode.com/mobile-device-management/help/script-to-view-battery-status-on-macos-devices/