Simple bash script to select and run specific AVD device.

avd_selector.sh

#!/bin/bash

# Run `emulator` to obtain devices (assumes emulator is on the PATH)
list_avds=$(emulator -list-avds)

# Split list_avds by newline and save to avds array
readarray -t avds <<<$list_avds

# Check if zero or one device only
devices_count=${#avds[@]}
if [ $devices_count -eq 0 ]
then
    echo No devices found. Create a device using avdmanager.
    exit
elif [ $devices_count -eq 1 ]
then
    # Run emulator with the only device
    echo Only one device found. Starting ${avds[0]}.
    exec emulator -avd ${avds[0]}
fi

# Output available devices with indexes
echo Available devices:

index=1
for avd in ${avds[@]}
do
    echo $index: $avd
    index=$((++index))
done

echo -n "Number of the device to start: "
# Read user input
read selection

# Select entry in avds array
avd=${avds[$((--selection))]}

# Run `emulator`
emulator -avd $avd