#!/usr/bin/env bash if [ $# -ne 1 ]; then echo "usage: ${0} " echo "example: ${0} USB0" exit 1 fi PORT="/dev/tty${1}" if test -c ${PORT}; then : else echo "no such device as ${PORT}" exit 1 fi /usr/bin/picocom --baud 115200 --flow n --parity n --databits 8 \ --send-cmd sb --receive-cmd rb ${PORT}