r , , Character Set Names Symbols I I Separator Blank , I National Dollar Sign $ , Pound Sign # , At Sign ii) I I Alphabetic uppercase A Z , Lowercase a -z , , Numeric Numeric 0 9 I I Alphameric National $, #, ii) , Alphabetic A Z , a z , Numeric 0 9 , , Special All other , characters
L J
Figure 1 • Character Sets and Their Contents Notational Conventions notation used to define the command syntax in this publication is: • Truncations and Abbreviations of Commands truncation of a command name is permitted, the shortest
acceptable version of the command is represented by uppercase (Remember, however, that eMS commands can be entered with
any combination of uppercase and lowercase letters.) The following
example shows the format specification for the FILEDEF command.
FIledef
This format means that FI, FIL, FILE, FILED, FILEDE, and FILEDEF are
all valid specifications for this command name.
Operands and options are specified in the same manner. Where truncation is permitted, the shortest acceptable version of the
operand or option is represented by uppercase letters in the command
format box. If no minimum truncation is noted, the entire word
(represented by all uppercase letters) must be entered.
Abbreviations are shorter forms of command operands and options.
Abbreviations for operands and options are shown in the description
of the individual operands and options that follow the format box.
For the abbreviation for MEMBER in the PRINT command is MEM. Only these two forms are valid and no truncations are allowed. The
format box contains
and the description that follows the format box is MEMBER {name} MEt'! *
4 IBM VM/370 eMS Command and Macro Reference

• The following symbols are used to define the command format and
should never be typed when the actual command is entered.
underscore
-
braces ( }
brackets []
ellipsis • Uppercase letters and words. and the following symbols. should be
entered as specified in the format box.
asterisk *
comma hyphen equal sign
parentheses () period colon • The abbreviations "fn". "ft". and "fm" refer to filename, filetype,
and filemode. respectively. The combination "fn ft :fm]" is also
called the file identifier or fileid. When a command format box shows the characters, fn ft fm or fileid
and they are not enclosed by brackets or it indicates that a CMS file identifier must be entered. If an asterisk (*) appears
beneath fn, ft, or fm, it indicates that an asterisk may be coded in
that position of the fileid. The operand description describes the
usage of the *. • Lowercase letters, words, and symbols that appear in the command
format box represent variables for which specific information should De substituted. For example, ft fm" indicates that file
identifiers such as "MYFILE EXEC Al" should be entered. • are represented in the command format boxes by stacking. A B
C • An underscore indicates an assumed default option. If an underscored is selected. it need not be specified when the command is
entered. The representation
indicates that either A, it need not be
assumed.
B, or C may be selected. However, if B is
specified. 3r, if none is entered, B is
section 1. Introduction and General Concepts 5