Backup APK content from the currently connected device

gistfile1.sh

#!/bin/bash

output=~/data.ab
package=${1:-"com.my.package"}
openssl="/usr/local/opt/openssl/bin/"
export PATH=$openssl:$PATH
adb -d backup -f $output -noapk $package
pushd ~
dd if=$output bs=1 skip=24 | openssl zlib -d | tar -xvf -
rm $output
open ~/apps/$package
popd