What is the command to view table spaces in db2?

You can use the following command in the DB2 database to view tablespace information:

SELECT TBSPACEID, NAME, TOTAL_PAGES, USED_PAGES, FREE_PAGES
FROM SYSCAT.TABLESPACES;

This command will return a result set containing detailed information about all table spaces, such as table space ID (`TBSPACEID`), name (`NAME`), total pages (`TOTAL_PAGES`), used pages (`USED_PAGES`), and free pages (`FREE_PAGES`).

Please note that you need to execute this command with a user identity that has sufficient permissions.