Specifications

Environment Variables
Environment variables store system parameters, parameterize
scripts, and pass information to the operating system. Some
environment variables are retained in nonvolatile memory.
Others are lost when power is interrupted.
Console commands used for environment variables are
summarized in Table 10-2. Table 10-3 defines standard
environment variables that can be set by the user. Environment
variables are set by the system.
Table 10-2. Console Commands for Environment Variables
Command Description
printenv Displays the value of environment variables.
setenv variable value Sets the value of an environment variable.
unsetenv variable value Deletes an environment variable.
10–18 Using the Console Program