Function std::env::vars_os

ⓘImportant traits for VarsOs
impl Iterator for VarsOs
    type Item = (OsString, OsString);
pub fn vars_os() -> VarsOs

Returns an iterator of (variable, value) pairs of OS strings, for all the environment variables of the current process.

The returned iterator contains a snapshot of the process's environment variables at the time of this invocation. Modifications to environment variables afterwards will not be reflected in the returned iterator.


use std::env;

// We will iterate through the references to the element returned by
// env::vars_os();
for (key, value) in env::vars_os() {
    println!("{:?}: {:?}", key, value);

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Licensed under the Apache License, Version 2.0 or the MIT license, at your option.