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Communicating With MVS
Chapter 2. Basic Concepts
Communicating With MVS
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Using TSO/E Commands . . . . . . . . . . . . . . . . . .
Using Command Operands . . . . . . . . . . . . . . .
Positional Operands . . . . . . . . . . . . . . . . . .
Keyword Operands
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Abbreviating Commands and Keyword Operands
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Abbreviating Commands . . . . . . . . . . . . . . .
Abbreviating Keywords . . . . . . . . . . . . . . . .
Separating Words in a Command . . . . . . . . . . . .
Continuing a Command on Another Line
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Including Comments . . . . . . . . . . . . . . . . . . .
Using Subcommands . . . . . . . . . . . . . . . . . . .
Issuing TSO/E Commands . . . . . . . . . . . . . . . .
Entering More than one Command . . . . . . . . .
Getting Help for Commands . . . . . . . . . . . . . . .
Listing All TSO/E Commands . . . . . . . . . . . . . .
Requesting Information about a Command . . . . .
Requesting Specific Information about a Command
Requesting More Information about a Message . .
List of TSO/E Commands . . . . . . . . . . . . . . . .
Using Data Sets
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TSO/E Data Set Naming Rules and Conventions . . .
Data Set Naming Rules . . . . . . . . . . . . . . . .
Data Set Naming Conventions . . . . . . . . . . . .
Entering Data Set Names . . . . . . . . . . . . . . . .
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Communicating With MVS
TSO/E allows you to communicate with the MVS operating system to do work.
Ways to communicate with MVS are through:
TSO/E Commands: Commands control your access to the system, determine
your terminal characteristics while you are on the system, allow communication
between TSO/E users, and manage data sets.
ISPF/PDF Panels: Interactive System Productivity Facility (ISPF) provides the
underlying dialog management service for the ISPF/Program Development
Facility (ISPF/PDF). ISPF/PDF is a dialog that allows a TSO/E user to issue
TSO/E commands directly or indirectly from panels.
Information about ISPF/PDF as it relates to specific TSO/E tasks is covered in
this book. For more information about ISPF/PDF, see the books listed in the
Preface.
Programs: Programs contain instructions that perform tasks. Some common
programming languages used under TSO/E are assembler, COBOL,
FORTRAN, Pascal, PL/I, REXX, and CLIST. REXX and CLIST (Command List)
are high-level interpretive programming languages that allow you to combine
TSO/E commands with language statements. For information about CLISTs,
see OS/390 TSO/E CLISTs. For information about REXX, see OS/390 TSO/E
REXX User's Guide and OS/390 TSO/E REXX Reference.
 Copyright IBM Corp. 1988, 1999
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