|SAS Macro Language: Reference|
When you invoke SAS, the macro processor creates automatic macro variables that supply information related to the SAS session. Automatic variables are global except SYSPBUFF, which is local.
To use an automatic macro variable, reference it with an ampersand followed by the macro variable name (for example, &SYSJOBID). This FOOTNOTE statement contains references to the automatic macro variables SYSDAY and SYSDATE:
footnote "Report for &sysday, &sysdate";
If the current SAS session is invoked on December 17, 1996, macro variable resolution causes SAS to receive this statement:
FOOTNOTE "Report for Tuesday, 17DEC96";
Automatic macro variables are often useful in conditional logic such as a %IF statement with actions determined by the value that is returned. %IF is described in Chapter 13.
You can assign values to automatic macro variables that have read/write status. However, you cannot assign a value to an automatic macro variable that has read-only status. Automatic Macro Variables by Category lists the automatic macro variables that are supplied by base SAS software and their read/write status. They are described in Chapter 13.
Use %PUT _AUTOMATIC_ to view all available automatic macro variables.
There are also system-specific macro variables that are created only on a particular platform. These are documented in the host companion, and common ones are listed in Chapter 11. Other SAS software products also provide macro variables, which are described in the documentation for the product that uses them.
|Read/Write||SYSBUFFER||unmatched text from %INPUT|
|SYSCC||the current condition code that SAS returns to your operating environment (the operating environment condition code)|
|SYSCMD||last unrecognized command from the command line of a macro window|
|SYSDEVIC||name of current graphics device|
|SYSDMG||return code that reflects an action taken on a damaged data set|
|SYSDSN||name of most recent SAS data set in two fields|
|SYSFILRC||return code set by the FILENAME statement|
|SYSLAST||name of most recent SAS data set in one field|
|SYSLCKRC||return code set by the LOCK statement|
|SYSLIBRC||return code set by the LIBNAME statement|
|SYSMSG||message for display in macro window|
|SYSPARM||value specified with the SYSPARM= system option|
|SYSPBUFF||text of macro parameter values|
|SYSRC||various system-related return codes|
|Read-Only||SYSCHARWIDTH||the character width value|
|SYSDATE||the character value representing the date a SAS job or session began executing (two-digit year)|
|SYSDATE9||the character value representing the date a SAS job or session began executing (four-digit year)|
|SYSDAY||day of week SAS job or session began executing|
|SYSENV||foreground or background indicator|
|SYSERR||return code set by SAS procedures and the DATA step|
|SYSINDEX||number of macros that have begun execution during this session|
|SYSINFO||return code information|
|SYSJOBID||name of current batch job or userid (varies by host environment)|
|SYSMENV||current macro execution environment|
|SYSPROCESSID||the process id of the current SAS process|
|SYSPROCESSNAME||the process name of the current SAS process|
|SYSSCP||the abbreviation of an operating system|
|SYSSCPL||the name of an operating system|
|SYSSITE||the number assigned to your site|
|SYSSTARTID||the id generated from the last STARTSAS statement|
|SYSSTARTNAME||the process name generated from the last STARTSAS statement|
|SYSTIME||the character value of the time a SAS job or session began executing|
|SYSUSERID||the userid or login of the current SAS process|
|SYSVER||release or version number of SAS software executing|
|SYSVLONG||release number and maintenance level of SAS software|
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Copyright 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.