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Mainframe - TSO/ISPF REVIEW Command

This article explains how to use REVIEW to read a data set or UNIX entity (tape and disk files) in a 3270 TSO terminal in full screen mode.

REVIEW is a "freeware" TSO/ISPF feature which allows a data set or UNIX entity to be examined (READ ONLY!) at a 3270 TSO terminal in full screen mode. Both tape and disk files may be REVIEWed.

Accessing REVIEW

The TSO/ISPF REVIEW command can be accessed through the ISPF "Local" panel. At the ISPF Primary Option Menu, enter "L" and at the Local ISPF Options Panel, enter "REV" to get to the "Review Command Processor" panel. Alternatively, you may enter "L.REV" at the ISPF Primary Option Menu to go directly to the "Review Command Processor" panel.

REVIEW may also be invoked from the TSO READY prompt by entering "REVIEW", "REV", or "REVVSAM". Operands for the TSO REVIEW Command may be found in the extensive HELP files.

Getting HELP

HELP screens are available by entering F1 at the "Review Command Processor" panel or by accessing the pull-down Help menu on that page. At the TSO READY prompt, enter "Help Review" to read the HELP pages.


If a PDS without a member is specified then a member selection list is displayed. Load module members with a residence mode of ANY are shown in high intensity or green in the member list. SCLM-managed members are flagged with an equals (’=’) sign in the member list.

File Data

When looking at file data, a ‘K’ may be shown in the "ruler" heading line to denote the first and last, or only, column(s) of record keys. On color terminals the portion of the "ruler" line corresponding to record keys is shown in red. If the record format indicates printer carriage control characters then an ‘A’ or an ‘M’ as appropriate may be shown in column 1 of the "ruler" heading line.


  • Format records according to Assembler data structure source code supplied by the user
  • Format the directories of ZIP files created by PKZIP, Info-ZIP, WinZIP, etc
  • Display the history of program objects residing in PDSE data sets or UNIX files, including compilation and program bind timestamps
  • Display pictures in 1-bit (black-and-white), 4-bit (16 colors) and 8-bit (256 colors) single-plane ".PCX" (ZSoft Paintbrush) files on a terminal with 3270 graphics capabilities
  • Process a single data set or a pre-allocated file concatenation. Partitioned files can be sequentialized, offloaded in PDSLOAD (IEBUPDTE-like) format, or searched for specific or picture-masked data. Load modules can be offloaded into a sequential format, and can be delinked into object decks. Sequential offload files can be processed to restore members into partitioned data sets
  • Process UNIX files such as HFS (Hierarchical File System) files
  • Allow access to, and the saving of, data by data content, data beyond I/O errors and end-of-file markers, and data from deleted members of a PDS
  • Convert ASCII data to EBCDIC
  • Browse the physical VSAM components (ie. VSAM objects with VTOC entries) even with corrupt or missing data in a CATALOG, VVDS or CI control flags


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Keywords:3270 review revvsam   Doc ID:19470
Owner:Todd L.Group:University of Chicago
Created:2011-08-02 18:00 CSTUpdated:2016-07-25 07:51 CST
Sites:University of Chicago, University of Chicago - Sandbox
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