serial.sh

#!/bin/sh
PORTS=`ls /dev/cu*USB* 2> /dev/null`
if [  $? -eq 1 ]; then
    PORTS=`ls /dev/cu*usb* 2> /dev/null`
    if [ $? -eq 1 ]; then
        echo "No USB serial port found."
        exit 1
    fi
fi

IDX=1
for port in $PORTS; do
    echo $IDX: $port
    IDX=$((IDX+1))
done

printf "Pick one: "
read SELIDX

IDX=1
for port in $PORTS; do
    if [ $IDX -eq $SELIDX ]; then
        echo "Connecting to $port... Ctrl A+K to quit"
        sleep 1
        screen $port 115200 -L
        break
    fi
    IDX=$((IDX+1))
done