Environment variables

This information contains a partial list of environment variables.

For the c89/cc/c++ environment variables, refer to the c89/cc/c++ command.
For the xlc environment variables, refer to the xlc — Compiler invocation using a customizable configuration file command.
For the mailx environment variables, refer to the mailx — Send or receive electronic mail command.
For the tcsh environment variables, refer to the tcsh — Invoke a C shell command.
For the tso environment variables, refer to the tso — Run a TSO/E command from the shell command.
For the tsocmd environment variables, refer to the tsocmd command.
For the vi environment variables, refer to the vi — Use the display-oriented interactive text editor command.

For a list of built-in environment variables, refer to Table 2. (Built-in environment variables are predefined variables that are set up with default values when you start the shell.)

A list of commonly used environment variables is in z/OS UNIX System Services Planning.