Synopsis:
info macros
info macros * info macros macro1 [macro2 ..]
In the first form a list of the existing macro names are shown in column format.
In the second form, all macro names and their definitions are shown.
In the last form the only definitions of the given macro names is shown. show macro [name1 name2 ...]
If macros names are given, show their definition. If left blank, show all macro names.