Shell script to extract backup files from android application via adb

agentx_get_backup.sh

#!/bin/bash
# Script to make and get android application backup (databases-extract purpose)
# Use: agentx_get_backup <package_name>
# Example: agentx_get_backup com.ltapps.textscanner

package_name=$1
echo ">>>>>> Please, accept backup creation (set password when device is encrypted) <<<<<<"

# Execute backup create command
adb backup -f /var/tmp/backup.ab -noapk $package_name

# Execute backup decompress command
dd if=/var/tmp/backup.ab bs=24 skip=1 | python -c "import zlib,sys;sys.stdout.write(zlib.decompress(sys.stdin.read()))" > /var/tmp/data.tar

# Decompress tar file
rm -r $1_backup || true
mkdir $1_backup
tar xvC $1_backup -f /var/tmp/data.tar 2> /dev/null

echo "Backup decompressed in ./$1_backup directory"

Make sure to have adb in your $PATH

echo "export PATH=$PATH:/Users/<your_user>/Library/Android/sdk/platform-tools/" >> ~/.bash_profile