this is an example of using exec.LookPath with exec.Command in golang

lookPathExample.go

package main
import (
	"os/exec"
	"fmt"
)
func main() {
	if someBin, err := exec.LookPath("ls"); err != nil {
		fmt.Println("couldn't find the ls bin in the path")
	}else if err == nil {
		actualBin := exec.Command(someBin, "-lah")
		if stdout, err := actualBin.CombinedOutput(); err != nil {
			fmt.Println(err)
		}else if err == nil {
			fmt.Println(string(stdout))
		}
	}

}