Sometimes we need to run external commands programatically to use the output of the command to drive the execution. Go provides a nice interface to run the external commands through exec package. Running an external command is very easy and an example is given below.
package main
import (
"fmt"
"log"
"os/exec"
)
func main() {
out, err := exec.Command("date").Output()
if err != nil {
log.Fatal(err)
}
fmt.Printf("The time is %s\n", out)
}
exec
package provides some other useful methods to work with external commands. Use this powerful package to build awesome things.