MacBook battery status and screen
While I'm writing my beginning Perl book, I've developed several tools to make my life easier. However, I've encountered a problem. I've often found that I am using iTerm2 in full-screen and this obscures my battery indicator. If I'm not plugged in, my battery can get dangerously low. I've fixed that.
I have the following little shell script which I've saved as "battery".
#!/bin/sh
ioreg -l | \
grep -E '(Max|Current)Capacity' | \
cut -d= -f2 | \
perl -e '@b=<STDIN>;printf"%.1f%%\n",100*$b[1]/$b[0]'
In my .screenrd.d/book file (detailed in the "tools" post), I've modified my caption using a backtick (I've cut out some stuff here to make it easier to see):
backtick 1 1 1 battery
caption always "%H%{-} [Battery %1`]"
That [Battery %1`] line now shows my battery life percentage in my screen caption.
Enjoy!
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thanks!
Been meaning to add a battery indicator to my shell prompt for a long time now. Thanks for solving the hard bit for me :) The other bit was caching since it's a tiny bit sluggish: https://github.com/sartak/shell-prompt/commit/5809d48b2
I am usually alerted by the pop up box (on full screen also with iTerm2) which says 'your battery is very low'.