### Initialization File

Although this is not a default feature of SIC, many programs using SIC call a initialization macro at run time to define symbols, execute startup commands and so on. This file is typically named

            GAG_INIT:INIT.DefExt

where DefExt is the default macro extension used by the program, and is usually the program name. Consult the specific programs documentation. GAG_INIT is a logical name that normally points to your login directory, or (by default) on $HOME/.gag/init/ on Unix-like systems.