os.md

std.os

Operating system interaction - environment variables, hostname, OS information, and CPU count.

All functions are backed by the Rust runtime.

Functions

get_env(name: String) -> String

Retrieves the value of the environment variable name. Returns an empty string if not set.

set_env(name: String, value: String) -> Bool

Sets the environment variable name to value. Returns true on success.

hostname() -> String

Returns the system hostname.

os_name() -> String

Returns the operating system name (e.g., "linux", "macos", "windows").

cpu_count() -> Int

Returns the number of logical CPUs available on the system.

Examples

load std.os

let path = os.get_env("PATH")
let ok = os.set_env("MY_VAR", "value")
let host = os.hostname()
let osn = os.os_name()
let cpus = os.cpu_count()