Using External Files and Devices

Reserved Filerefs in UNIX Environments

The following filerefs are reserved.

DATALINES fileref in the INFILE statement: specifies that input data immediately follow a DATALINES statement. You need to use INFILE DATALINES only when you want to specify options in the INFILE statement to read instream data.
LOG fileref in the FILE statement: specifies that output lines produced by PUT statements be written to the SAS log. LOG is the default destination for output lines.
PRINT fileref in the FILE statement: specifies that output lines produced by PUT statements be written to the same print file as output produced by SAS procedures.