So, I know this can be done but my awk and sed wizardry is not up to snuff for the job. Basically, I have tons and tons of Macbooks at my work and I am trying to grab the current percentage of the battery power on each client.

If I use the system_profiler SPPowerDataType command it prints off the current specs of all power management. One spec is the current charge of the battery in mAh, and one is the total capacity.

So, I would like to grep | awk | or sed out this info and then have it do simple division then convert the answer into readable percentage.

So like if I pull out the string of the current charge and it is at 1020 mAh, and I know that the total capacity of the battery is 5242 mAh. I could grab both of those strings but how to I make those form a number in percentage that is human readable?

Thanks a ton for any help in advance.

EDIT

Guess I should give some example code...

Code:

system_profiler SPPowerDataType | grep "Charging status" | awk '{ print 4}'

This returns the numerical number of how much charge, and I would need to grab the total capacity and the divide them or whatever to output a percentage.