Returns the value of an environment variable.
The name and value are in the GLib file name encoding. On UNIX, this means the actual bytes which might or might not be in some consistent character set and encoding. On Windows, it is in UTF-8. On Windows, in case the environment variable's value contains references to other environment variables, they are expanded.
| variable |
the environment variable to get, in the GLib file name encoding |
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the value of the environment variable, or null if the environment variable is not found. The returned string may be overwritten by the next call to get_variable, set_variable or unset_variable. |