Calling an external command in Go

Question

How can I call an external command in GO? I need to call an external program and wait for it to finish execution. before the next statement is executed.

Answer 1

package main

import (
  "fmt"
  "os/exec"
  "log"
)

func main() {
  cmd := exec.Command("ls", "-ltr")
  out, err := cmd.CombinedOutput()
  if err != nil {
    log.Fatal(err)
  }
  fmt.Printf("%s\n", out)
}

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