Drupal 8 Drush config export to gzipped tar file

gistfile1.txt

#Linux
------------

#Change directory to Drupal root

cd ~/public_html/<site-name>

#Export config to "config" directory

drush config-export --destination=~/tmp/config

cd ~/tmp

# Tar all files in "config" directory to `config.tar.gz`

tar -czf config.tar.gz -C config .

Now you can import ~/tmp/config.tar.gz file to config.