turing pi 2 console connect script

console.sh

#!/bin/bash

# A simple script to help access the serial consoles on
# turing pi 2 nodes.
#
# Usage: ./console.sh <node number>

node=${1}

# The consoles are on nonsensical TTYs, so map them.
declare -A ttys
ttys[1]="/dev/ttyS2"
ttys[2]="/dev/ttyS1"
ttys[3]="/dev/ttyS4"
ttys[4]="/dev/ttyS5"

# Pick the tty corresponding to the node.
tty=${ttys[$node]}

# If an invalid node number was given, exit.
if [[ ${tty} = "" ]]; then
  echo "Connect to the serial console on a node."
  echo "$0 [1..4]"
  exit 1
fi

echo "Use ctrl-x to exit. Connecting to node${node} on ${tty}"
echo

# connect
microcom -s 115200 ${tty}

echo
echo "disconnected"