Spawning processes

Context

The os/exec package spawns external processes. You can run commands and capture their output.

Example

Run ls -l and print the output.

Code example

package main

import (
    "fmt"
    "os/exec"
)

func main() {
    cmd := exec.Command("ls", "-l")
    out, err := cmd.Output()
    if err != nil {
        fmt.Println("Error:", err)
        return
    }
    fmt.Println(string(out))
}

Output (example)

total 0
-rw-r--r--  1 user  staff  0 Jan 1 12:00 file.txt

Useful links

• os/exec package
• Go by Example: Spawning Processes