Process Structs

Process management และ child process handling

Command Builder

use std::process::Command;

fn main() {
    // Basic command execution
    let output = Command::new("echo")
        .arg("Hello, World!")
        .output()
        .expect("Failed to execute command");

    println!("Status: {}", output.status);
    println!("Stdout: {}", String::from_utf8_lossy(&output.stdout));
    println!("Stderr: {}", String::from_utf8_lossy(&output.stderr));

    // Multiple arguments
    let output = Command::new("ls")
        .args(["-l", "-a"])
        .output()
        .expect("Failed");

    println!("\n=== ls -la ===");
    println!("{}", String::from_utf8_lossy(&output.stdout));

    // With environment variable
    let output = Command::new("sh")
        .arg("-c")
        .arg("echo $MY_VAR")
        .env("MY_VAR", "custom_value")
        .output()
        .expect("Failed");

    println!("With env var: {}", String::from_utf8_lossy(&output.stdout));

    // Current directory
    let output = Command::new("pwd")
        .current_dir("/tmp")
        .output()
        .expect("Failed");

    println!("In /tmp: {}", String::from_utf8_lossy(&output.stdout));
}