sqoop--使用工具

1.将工具名称作为参数

[root@master ~]# sqoop help
25/01/19 18:22:20 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7
usage: sqoop COMMAND [ARGS]

Available commands:
  codegen            Generate code to interact with database records
  create-hive-table  Import a table definition into Hive
  eval               Evaluate a SQL statement and display the results
  export             Export an HDFS directory to a database table
  help               List available commands
  import             Import a table from a database to HDFS
  import-all-tables  Import tables from a database to HDFS
  import-mainframe   Import datasets from a mainframe server to HDFS
  job                Work with saved jobs
  list-databases     List available databases on a server
  list-tables        List available tables in a database
  merge              Merge results of incremental imports
  metastore          Run a standalone Sqoop metastore
  version            Display version information

See 'sqoop help COMMAND' for information on a specific command.
[root@master ~]# 

[root@master ~]# sqoop import
25/01/19 18:24:57 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7
--table or --query is required for import. (Or use sqoop import-all-tables.)
Try --help for usage instructions.

2.使用脚本

[root@master ~]# sqoop-help
25/01/19 18:19:31 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7
usage: sqoop COMMAND [ARGS]

Available commands:
  codegen            Generate code to interact with database records
  create-hive-table  Import a table definition into Hive
  eval               Evaluate a SQL statement and display the results
  export             Export an HDFS directory to a database table
  help               List available commands
  import             Import a table from a database to HDFS
  import-all-tables  Import tables from a database to HDFS
  import-mainframe   Import datasets from a mainframe server to HDFS
  job                Work with saved jobs
  list-databases     List available databases on a server
  list-tables        List available tables in a database
  merge              Merge results of incremental imports
  metastore          Run a standalone Sqoop metastore
  version            Display version information

See 'sqoop help COMMAND' for information on a specific command.
[root@master ~]# 

[root@master ~]# sqoop-import
25/01/19 18:24:46 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7
--table or --query is required for import. (Or use sqoop import-all-tables.)
Try --help for usage instructions.