When a function or an alias is used as a statement, the parentheses surround- ing the argument list may be omitted. The arguments are listed by name in their natural order. If no argument is given, all currently defined alias macros are listed. No value is returned. Set the window cursor to modes .
Return value is the previous modes.
Default is no change. Set the default buffer size to nline . Initially, it is 48 lines. Returns the old default buffer size. Default is no change.