Macro Functions in UNIX Environments

The following functions have operating environment dependencies:

%SCAN

• searches for a word that is specified by its position in a string. The form of the %SCAN function is

  • %SCAN ( argument , n ,< delimiters >);

• On ASCII systems, the default delimiters are

   blank .< ( + & ! $ * ) ; ^ - / , % 

% SYSGET

• returns the character string that is the value of the environment variable passed as the argument. Both UNIX and SAS environment variables can be translated using the %SYSGET function. A warning message is printed if the global variable does not exist. The form of the %SYSGET function is

  • %SYSGET ( environment-variable );

  For example, the following code writes the value of the HOME environment variable to the SAS log:

   %let var1=%sysget(HOME);   %put &var1;