Environment Variables : Environment Variables under TSO
Under
TSO, environment variables are implemented as a SAS/C extension. SAS/C provides
GETENV and PUTENV TSO commands enabling you to inspect and modify environment
variables without writing a C program to do so. These commands are described
in Chapter 6, "Executing C Programs," in the
SAS/C Compiler and Library User's Guide.
Note:
Under CMS, when you update a permanent-scope environment variable, the new
value is also assigned to the external-scope variable of the same name. ![[cautionend]](../common/images/cautend.gif)
Environment variable names are limited under TSO to
254 characters, and values are limited to 255 characters.
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by SAS Institute Inc., Cary, NC, USA. All rights reserved.
