INCLUDE - obtain input from another file.

$*$INcLude filename: takes input from the specified file. This is similar to executing the contents of "filename" with an EXEC command, but there is a difference. If you use an EXEC command, the contents of "filename" are executed as a fresh EXEC session, with everything re-initialized. With $*$INcLude, the contents of "filename" are executed in the context of the current EXEC session, and can make use of any variables that are currently defined.