[ Version ( since = "0.7" ) ]
public int32 aug_defvar (string name, string? expr) throws Error
define an Augeas variable
Defines an Augeas variable name whose value is the result of evaluating expr. If expr is NULL,
then name is undefined.
On success this returns the number of nodes in expr, or @0 if expr evaluates to something which is not a
nodeset.
| this |
A GuestfsSession object |
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the returned value, or -1 on error |