terraform workspace --help

Usage: terraform [global options] workspace

  new, list, show, select and delete Terraform workspaces. 

Subcommands:
    delete    Delete a workspace
    list      List Workspaces
    new       Create a new workspace
    select    Select a workspace
    show      Show the name of the current workspace

See also

• terraform [untaint | fmt | apply |show | state | init | plan | console | output | validate | destroy | debug | import | providers | get | graph | workspaces | resource | login | -var-file | state mv | state pull | state push | state replace-provider | state rm | force-unlock | env | tfe | --version | remote-exec | delete on termination | deprecated commands | terraform --help]