Function std::env::vars_os1.0.0[][src]

pub fn vars_os() -> VarsOs
Notable traits for VarsOs
impl Iterator for VarsOs type Item = (OsString, OsString);
Expand description

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.

Note that the returned iterator will not check if the environment variables are valid Unicode. If you want to panic on invalid UTF-8, use the vars function instead.


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);