UNIX environment variables
are variables that apply to both the current shell and to any subshells
that it creates. The way in which you define an environment variable
depends on the shell that you are running.
For more information, see Defining Environment Variables in UNIX Environments in SAS Companion for UNIX Environments.z/OS environment variables
are specified in a SAS data set that is referred to as the TKMVSENV
data set file.
For more information
about setting environment variables in the TKMVSENV file, see TKMVSENV File in SAS Companion for z/OS.
For Windows, you can
choose to define a SAS environment variable using the SET system option
or to define a Windows environment variable using the Windows SET
command.
For more information, see Using Environment Variables in SAS Companion for Windows.