func ExampleCommandf() {
out, err := shell.Commandf("echo %s", "hello world").Output()
if err != nil {
log.Fatal(err)
}
fmt.Print(string(out))
// Output: hello world
}
func ExampleCommandf_redirect() {
var stdout, stderr bytes.Buffer
cmd := shell.Commandf("echo %s; echo %s 1>&2", "hello from stdout", "hello from stderr")
cmd.Stdout = &stdout
cmd.Stderr = &stderr
err := cmd.Run()
if err != nil {
log.Fatal(err)
}
fmt.Println("stdout:", strings.TrimSpace(stdout.String()))
fmt.Println("stderr:", strings.TrimSpace(stderr.String()))
// Output: stdout: hello from stdout
// stderr: hello from stderr
}