Variables

There are two types of variables in Perun2: built-in variables and user-defined variables. Names of both of them are insensitive to case size.

A new variable can be defined by user as shown above. There is a restriction - its name must be a single letter. The scope of a new variable is limited by the level of curly brackets. Every variable is associated with a certain data type and this type stays constant throughout its life. For example, a variable initialized with an integer value will always store numbers. New variables of the definition type cannot be created, as definitions are always evaluated when called.

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Built-in Variables

Perun2 contains of lot of built-in variables. We can make use of:

• file attributes
• collections of files
• paths to common programs
• values related to time
• other useful things