Lists connected Android devices (via adb) and the device's corresponding model and OS version - See http://dallasgutauckis.com/2014/04/09/listing-connected-android-devices-with-os-version-and-model/

listDevices.sh

#!/bin/bash
if [[ ! $PATH_TO_ADB ]]; then
  PATH_TO_ADB=`which adb`
fi

if [[ ! $PATH_TO_ADB ]]; then
  if [[ ! $ANDROID_HOME ]]; then
    echo "Failed to determine path to adb; consider setting ANDROID_HOME to your SDK directory or PATH_TO_ADB to the path to ADB"
    exit 1
  fi

  PATH_TO_ADB="$ANDROID_HOME/platform-tools/adb"
fi

devices=`$PATH_TO_ADB devices | grep -E "device\$" | cut -f1`

for device in $devices; do
  model=$($PATH_TO_ADB -s $device shell getprop ro.product.model | tr -d '\r')
  version=$($PATH_TO_ADB -s $device shell getprop ro.build.version.release | tr -d '\r')

  printf '%-20s [%6s]: %-20s \n' "$device" "$version" "$model"
done

It's sometimes convenient to have both version name and version code (aka API lvl).

sdk=$($PATH_TO_ADB -s $device shell getprop ro.build.version.sdk | tr -d '\r')
printf '%-20s [%5s ~ %2s]: %-20s \n' "$device" "$version" "$sdk" "$model"