Defined SAS macros and functions
These are some but not all there are

%ABORT statement
%DO Statement 
%DO, Iterative Statement 
%DO %UNTIL Statement 
%DO %WHILE Statement 
%END Statement 
EXECUTE Routine 
%GOTO Statement 
%IF-%THEN/%ELSE Statement 
%IF-%THEN %DO Statement
%INDEX Function 
%INPUT Statement 
INTO Clause 
%label Statement 
%LET Statement 
%MACRO Statement 
MACRO System Option 
%MEND Statement
MPRINT System Option  
%PUT Statement 
%SUBSTR and %QSUBSTR Functions 
&SYSDATE Automatic Macro Variable 
&SYSDATE9 Automatic Macro Variable 
&SYSDAY Automatic Macro Variable 
&SYSPARM Automatic Macro Variable 
SYSPARM= System Option
&SYSTIME Automatic Macro Variable  
%TRIM and %QTRIM Autocall Macro 
%UNQUOTE Function 
%UPCASE and %QUPCASE Functions 
%VERIFY Autocall Macro 
%WINDOW Statement