popen_rs - Simple Process Spawning Library

Description

This small Rust library simplifies the process of running system commands by 
spawning a new child process and reading the content of either the stdout 
or stderr stream handle.

Usage

• Add the crate to your project

cargo add popen_rs

• Import the popen_rs crate to your source file

use popen_rs::Popen;

Methods

spawn

Spawns a new child process and captures the handles of stdout and stderr. This function will return the content of either stdout or stderr.

pub fn spawn(&mut self) -> io::Result<String>

pid

Requests the OS specified process identifier of the current child process.

pub fn pid(&mut self) -> Option<u32>

Example

use popen_rs::Popen;

fn main() {
    let command = "ls -l";
    let mut process = Popen::new(command);

    match process.spawn() {
        Ok(output) => {
            let pid = process.pid().unwrap();

            println!("Output of `{}` [PID:{}]:", command, pid);
            println!("\n{}", output);
        },
        Err(err) => eprintln!("Error: {}", err),
    }
}

License

This project is published under the MIT License.