Appendix F. Environment Variables

The following table lists the Hercules environment variables. The table is sorted by the usage (configura-
tion, build, ...) and the name of the environment variable.

Usage

Environment Variable

Description

Platform

Hercules Build

BZIP2_DIR

Path to the BZIP2 package

Windows

Hercules Build

PCRE_DIR

Path to the PCRE package

Windows

Hercules Build

ZLIB_DIR

Path to the ZLIB package

Windows

Hercules Configuration

HERCULES_CNF

Default name of configuration file

All

Hercules Configuration

HERCULES_CP

Hercules Codepage

All

Hercules Configuration

HERCULES_RC

Default name of run-commands file

All

Hercules Configuration

HERCULES_LIB

Dynamic load modules path

All

Hercules Configuration

HREXX_PACKAGE

Name of REXX package

All

Hercules Configuration

LD_LIBRARY_PATH

Dynamic load modules path

All

Hercules Configuration

REXX_DIR

Path to the REXX package

All

Table 36: Environment Variables

Appendix G. Syntax

This book uses two kinds of describing the syntax of configuration statements, console commands and
utilities. These are:

G.1 Reading Syntax Descriptions

All syntax descriptions in this book (configuration statements, console commands and utilites) use a com-
mon structure as described in the following table.

Syntax Element

Description

KEYWORDS

Keywords are denoted with upper case letters. Obey the spelling. In the
actual statements or commands they can be coded in upper case or
lower case letters.

variables

All user defined values are denoted with lower case italic letters. In the
actual statements or commands they can be coded in upper case or
lower case letters.

{ }

Signifies that all or some portion of the code elements between the
braces are required elements. Note that the braces are not part of the
statements and must be not coded.

[ ]

Signifies that all or some portion of the code elements between the
square brackets can optionally appear but are not required elements.
Note that the square brackets are not part of the statements and must be
not coded.

|

The OR symbol signifies that you may use only one of the code elements
or values from the possible choices. Note that the OR symbol is not part
of the statements and must be not coded.

xxx,...

Signifies that there can be more than one value in a comma delimited
list. Note that the dots are not part of the statements and must be not
coded.

xxx ...

Signifies that there can be more than one value in a blank space delimit-
ted list. Note that the dots are not part of the statements and must be not
coded.

Table 37: Reading Syntax Descriptions