# odps > Aliyun ODPS (Open Data Processing Service) command-line tool. > Some subcommands such as `odps inst` have their own usage documentation. > More information: . - Start the command-line with a custom configuration file: `odpscmd --config={{odps_config.ini}}` - Switch current project: `use {{project_name}};` - Show tables in the current project: `show tables;` - Describe a table: `desc {{table_name}};` - Show table partitions: `show partitions {{table_name}};` - Describe a partition: `desc {{table_name}} partition ({{partition_spec}});`