Understanding the Built-in CLI Functions

Of course, scripts are of little utility unless they can interact with the system at large. There are several built-in functions that allow your scripts to interact with the system:

Table 9 Built-in Functions to Support System Interactions

Function	Description
`get`	Gets the value of the specified property. Note that this function returns the value in native form, e.g. dates are returned as Date objects.
`list`	Returns an array of tokens corresponding to the dynamic children of the current context.
`run`	Runs the specified command in the shell, returning any output as a string. Note that if the output contains multiple lines, the returned string will contain embedded newlines.
`props`	Returns an array of the property names for the current node.
`set`	Takes two string arguments, setting the specified property to the specified value.
`choices`	Returns an array of the valid property values for any property for which the set of values is known and enumerable.