Linux Firewalls, Third Edition

Defining Macros in AIDE

Macros are used in AIDE to define commonly used objects and objects to be used as variables throughout an AIDE configuration file. You might use an AIDE macro to define the top-level directory to be used within the configuration. You would then use this macro within selection lines, and it would be substituted like a variable in that selection line. You also might use a macro to set a variable based on certain criteria. Macros can then be used within the AIDE configuration within control structures (decisional blocks of code) to alter the configuration of AIDE based on the outcome of the control structure.

Macros are defined using the following syntax:

@@define <macro> <definition>

Macros can also be undefined with this ...