```
echo "show databases;"|mysql|egrep -v '^(tmp|Database|modsec|mysql|roundcube|performance_schema|logaholicDB_template|leechprotect|cphulkd|bb_mysqltest|information_schema)$' |sort > /root/system_dbs.txt

for db in $(cat /root/system_dbs.txt); \
do \
echo "UPDATE \`$db\`.\`users\` SET password = 'PASSHASH' WHERE username = 'user';" | mysql; \
echo "UPDATE \`$db\`.\`adminusers\` SET pass = 'PASSHASH' WHERE user = 'user';" | mysql; \
done
rm -f /root/system_dbs.txt
```