Commands
- add group
- add user
- backup
- config
- connect
- count<class>([<expression>])
- create database
- create index
- dbconfig list
- drop database
- drop group
- drop index
- drop user
- erase<class>([<expression>])
- exit
- help
- list classes
- list databases
- list groups
- list indices
- list users
- modify database
- modify group
- modify index
- modify user
- print class
- quit
- rebuild all indices
- rebuild index
- request<class>([<expression>])
- restore
- select<class>([<expression>])
- server logs
- set password
- version