Environment Variables are definitions of directory structures to be referenced elsewhere in the step.rc. A more extensive explanation can be found on the Configuration page.
Like other UNIX programs. CGIs obtain and store their input rather than reading it in every time it's needed. This stored information - in the form of environment variables - is passed to the program by the HTTP server (from the submitting client). An environment variable, therefore, is a value passed into a program or script by the runtime environment on the system where it's running.
Variables provided by certain operating systems and by Liquid Common Lisp that allow you to customize the operating system and Lisp environment respectively.
Clients and servers communicate environment variables to one another. These are additional pieces of information that can help the client and the server to better communication with each other.
See variables, environmental.
Unix is a programming environment in addition to an operating system and, like any other programming environment, it has variables. Environment variables are those variables which, as the name implies, have direct impact on your computing environment. For example, the PATH environment variable tells your shell where to look for executable programs, and the EDITOR environment variable tells other programs which editor you prefer to use.
Variables that define the current operating system environment, for example, the version number or search path.
global values or settings that determine the default operation of all shells and are also passed on to application programs. Environment variables contain information about your working environment. These are set by system administrators but can be changed by the individual user (main commands, printenv and setenv).
Variables used to develop test cases independent of the test environment. They are preceded with a $ sign.
a part of a process' environment. Environment variables are directly viewable from the shell. See Also process.
System-level variables used to communicate values between processes. For example, a remote host name, a password, or the type of data to be returned are usually passed as environment variables.
Environment variables are stored by the operating system. You can change and/or add environment variables on a per-process basis. Any changes made to environment variables will be passed on to child processes, but, when your process ends, the changes go away.
Standard UNIX variables that are used by the shell and by applications.
The shell data components of a process in the UNIX environment.
Used to associate drives, paths or files to symbolic names that can be recognized by Windows operating systems.
