All returns a copy of strings representing the environment, in the form "key=value".

Build builds a map to an environment variable slice.

Contains checks whether the environment variable named `key` exists.

Filter filters repeated items from given environment variables.

Get creates and returns a Var with the value of the environment variable named by the `key`.

GetWithCmd returns the environment value specified `key`.

Map returns a copy of strings representing the environment as a map.

MapFromEnv converts environment variables from slice to map.

MapToEnv converts environment variables from map to slice.

MustRemove performs as Remove, but it panics if any error occurs.

MustSet performs as Set, but it panics if any error occurs.

Remove deletes one or more environment variables.

Set sets the value of the environment variable named by the `key`.

SetMap sets the environment variables using map.