Sample file names from wp-cli export example.wordpress.2017-03-03.988.xml
ls -1 | sed 's/example.wordpress.[0-9]*-[0-9]*-[0-9]*.\([0-9]*\).xml$/\1/'
Extracts 998
Sample file names from wp-cli export example.wordpress.2017-03-03.988.xml
ls -1 | sed 's/example.wordpress.[0-9]*-[0-9]*-[0-9]*.\([0-9]*\).xml$/\1/'
Extracts 998