Terms
Array Variable An array variable is a variable that groups multiple scalar variables together using a single name. Each of the individual scalar variables is accessed via an index.
Environment The environment is a set of variables that the shell passes to every program it starts.
Environment Variable An environment variable is a variable that is a member of the environment.
Exporting The process of placing a variable in the environment is called exporting.
Local Variable A local variable is a variable that is present within the current instance of the shell. It is not available to programs that are started by the shell.
Read-Only Variable A read-only variable is a variable whose value cannot be changed.
Scalar Variable A scalar variable ...
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