
Products: Abaqus/Standard Abaqus/Explicit
“User subroutines: overview,” Section 15.1.1 of the Abaqus Analysis User's Manual
“Using the Abaqus environment settings,” Section 3.3.1 of the Abaqus Analysis User's Manual
“UWAVE and UEXTERNALDB,” Section 4.1.27 of the Abaqus Verification Manual

Utility routines GETENVVAR and VGETENVVAR can be called from any Abaqus/Standard or Abaqus/Explicit user subroutine, respectively, to obtain the value of an environment variable.