How do you get the output of a system command in Go?

by

There is an easier way now:

package main

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

func main() {
    out, err := exec.Command("date").Output()
    if err != nil {
        log.Fatal(err)
    }
    fmt.Printf("The date is %s\n", out)
}

Where out is the standard output. It’s in the format []byte, but you can change it to string easily with:

string(out)

You can also use CombinedOutput() instead of Output() which returns standard output and standard error.

exec.Command

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