adb-wifi-connect

#!/bin/bash

ADB=~/opt/android/sdk/platform-tools/adb
LAST=".adb-wifi-connect.last"

# instruct device to listen on tcpip
$ADB tcpip 5555

# give device time to aquire port
sleep 2

# get net configuration
NETCONFIG=$($ADB shell netcfg)

# match for line starting with ip for wlan0
if [[ $NETCONFIG =~ wlan0[[:alpha:]|[:space:]]*([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+).* ]]; then
  IP="${BASH_REMATCH[1]}"
  echo "current device on $IP"
  echo "$IP" > "$LAST"
else
  IP=$(<"$LAST")
  echo "last device on $IP"
fi

# connect to device
$ADB connect $IP