ups test

#!/bin/sh

# wait for power loss
while sleep .5 ; do
    apcaccess |grep -q '^STATUS.*ONLINE' || break
done

# set current time to zero
date=$(date +%s)
while sleep .5 ; do
    pct=$(apcaccess |awk -F' +|\\.' '/^BCHARGE/{print$3}')
    # if capacity is changed print it
    if [ "$pct" != "$last" ]; then
        echo $(($(date +%s)-date))
        echo "Batt: $pct %"
        last=$pct
    fi
done