wp db export nameoffile.sql
wp db import nameoffile.sql
wp export --dir=../wxr-exports --url=example.com
wp export --dir=~/wxr-exports --url=example.com --start_date=2015-08-01 --end_date=2015-09-18
for f in ~/path-to-xmls/*.xml; do wp import $f --url=example.com --authors=create; done