Operating System (@std/os)

@std/os exposes basic information about the host system.

import { platform, arch, hostname } from "@std/os";

console.log(platform());  // "darwin" or "linux"
console.log(arch());      // "arm64" or "x64"
console.log(hostname());

Reference

platform(): string    // OS: "darwin", "linux"
arch(): string        // CPU: "arm64", "x64"
type(): string        // kernel name: "Darwin", "Linux"
release(): string     // kernel release (uname -r)
version(): string     // kernel version (uname -v)
machine(): string     // hardware name: "arm64", "x86_64"
hostname(): string    // system hostname
homedir(): string     // current user's home directory ($HOME)
tmpdir(): string      // temp directory ($TMPDIR, else "/tmp")
totalmem(): i64       // total physical memory, in bytes
freemem(): i64        // free physical memory, in bytes (best-effort)
availableParallelism(): i32   // number of logical CPUs
endianness(): string  // "LE" on Zeus's targets
EOL(): string         // "\n"
loadavg(): LoadAvg    // { one, five, fifteen } load averages

import { loadavg, LoadAvg, availableParallelism } from "@std/os";

let la: LoadAvg = loadavg();
console.log(la.one);                   // 1-minute load average
console.log(availableParallelism());   // e.g. 10

Example

import { homedir, tmpdir, totalmem } from "@std/os";

console.log("home: " + homedir());
console.log("tmp:  " + tmpdir());
console.log("mem:  " + (totalmem() as i32) + " bytes");