energy data in ksh prompts

[Lars Noodén]

Here are two variations of the standard ksh shell prompt that I myself
find useful on several of my devices, in particular the portables.  The
first prompt shows the temperature on cpu0, the second the amount of
battery claimed to remain:

        export PS1='`( /sbin/sysctl hw.sensors.cpu0.temp0 | sed -e \
        "s/^.*\([0-9][0-9]\.[0-9]\)\([0-9]\).*$/\1/g;")`$ '
        66.0$

        export PS1='`/usr/sbin/apm -l`% $ '
        96% $

Here is a test using date:

        export PS1='`/bin/date +"%H:%M:%S"`$ '
        14:20:33$

apm is to cool running mode in rc.local

Regards
-Lars