gpsdate.sh

## Set date with GPS
## reV 2014-09-25

GPS="/dev/ttyUSB0"
LAST="/sd/logs/date.last"

if [[ ! -e $GPS ]]; then
        echo $GPS not found!
        echo check last known date
        if [[ -e $LAST ]]; then
                GPSDATE=$(cat $LAST)
        else
                echo $LAST not found!
                GPSDATE="2014-01-01 00:00:00"
        fi
else
        GPSDATE=$(gpspipe -w -n 10 | grep TPV | sed -r 's/.*"time":"([^"]*)".*/\1/' | tail -n 1 | sed -e 's/^\(.\{10\}\)T\(.\{8\}\).*/\1 \2/')
        echo $GPSDATE > $LAST
fi

date -us "$GPSDATE"