# influx > InfluxDB command-line client. > More information: . - Connect to an InfluxDB running on localhost with no credentials: `influx` - Connect with a specific username (will prompt for a password): `influx -username {{username}} -password ""` - Connect to a specific host: `influx -host {{hostname}}` - Use a specific database: `influx -database {{database_name}}` - Execute a given command: `influx -execute "{{influxql_command}}"` - Return output in a specific format: `influx -execute "{{influxql_command}}" -format {{json|csv|column}}`