datapump undocumented command "desc"

[oracle@stormking cdb12102 dpump]$ expdp attach= "U"."SYS_EXPORT_TABLE_01"

Export: Release 12.1.0.2.0 - Production on Mon Jul 18 22:06:21 2016

Copyright (c) 1982, 2014, Oracle and/or its affiliates.  All rights reserved.

Username: u/u@//stormking:1521/pdbm

Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Advanced Analytics
and Real Application Testing options


Job: SYS_EXPORT_TABLE_01
  Owner: U
  Operation: EXPORT
  Creator Privs: TRUE
  GUID: 37F48589F45C6E50E0537901A8C02DBC
  Start Time: Monday, 18 July, 2016 22:05:44
  Mode: TABLE
  Instance: cdb12102
  Max Parallelism: 1
  Timezone: -07:00
  Timezone version: 18
  Endianness: LITTLE
  NLS character set: AL32UTF8
  NLS NCHAR character set: AL16UTF16
  EXPORT Job Parameters:
  Parameter Name      Parameter Value:
     CLIENT_COMMAND        u/********@//stormking:1521/pdbm parfile=expdp.table.u.u.par
  State: EXECUTING
  Bytes Processed: 0
  Current Parallelism: 1
  Job Error Count: 0
  Dump File: /home/oracle/brian/sql/dpump/expdp.table.u.u.01.dat
    bytes written: 4,096
  Dump File: /home/oracle/brian/sql/dpump/expdp.table.u.u.%u.dat

Worker 1 Status:
  Instance ID: 1
  Instance name: cdb12102
  Host name: stormking
  Process Name: DW00
  State: EXECUTING
  Object Schema: U
  Object Name: U_UK
  Object Type: TABLE_EXPORT/TABLE/INDEX/INDEX
  Completed Objects: 1
  Worker Parallelism: 1

Export>
Export> desc

Job: SYS_EXPORT_TABLE_01
  Owner: U
  Operation: EXPORT
  Creator Privs: TRUE
  GUID: 37F48589F45C6E50E0537901A8C02DBC
  Start Time: Monday, 18 July, 2016 22:05:44
  Mode: TABLE
  Instance: cdb12102
  Max Parallelism: 1
  Timezone: -07:00
  Timezone version: 18
  Endianness: LITTLE
  NLS character set: AL32UTF8
  NLS NCHAR character set: AL16UTF16
  EXPORT Job Parameters:
  Parameter Name      Parameter Value:
     CLIENT_COMMAND        u/********@//stormking:1521/pdbm parfile=expdp.table.u.u.par

[oracle@stormking cdb12102 dpump]$ impdp u/u@//stormking:1521/pdbm parfile=impdp.table.u.u.par

Import: Release 12.1.0.2.0 - Production on Mon Jul 18 22:14:35 2016

Copyright (c) 1982, 2014, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Advanced Analytics
and Real Application Testing options
Master table "U"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "U"."SYS_IMPORT_FULL_01":  u/********@//stormking:1521/pdbm parfile=impdp.table.u.u.par
Processing object type TABLE_EXPORT/TABLE/TABLE
^C
Import> desc

Job: SYS_IMPORT_FULL_01
  Owner: U
  Operation: IMPORT
  Creator Privs: TRUE
  GUID: 37F4A57EAE536EFDE0537901A8C0328C
  Start Time: Monday, 18 July, 2016 22:14:38
  Mode: FULL
  Instance: cdb12102
  Max Parallelism: 1
  Timezone: -07:00
  Timezone version: 18
  Endianness: LITTLE
  NLS character set: AL32UTF8
  NLS NCHAR character set: AL16UTF16
  EXPORT Job Parameters:
  Parameter Name      Parameter Value:
     CLIENT_COMMAND        u/********@//stormking:1521/pdbm parfile=expdp.table.u.u.par
  IMPORT Job Parameters:
  Parameter Name      Parameter Value:
     CLIENT_COMMAND        u/********@//stormking:1521/pdbm parfile=impdp.table.u.u.par
     TABLE_EXISTS_ACTION   REPLACE