getEnv package:base
Computation
getEnv var returns the value of the
environment variable
var. For the inverse, the
setEnv
function can be used.
This computation may fail with:
getEnvironment retrieves the entire environment as a list of
(key,value) pairs.
If an environment entry does not contain an
'=' character,
the
key is the whole entry and the
value is the
empty string.
Get an environment value or a default value.