add manage command

cmd/exec.go

@@ -0,0 +1,25 @@
+package cmd
+
+import (
+	"errors"
+	"os"
+	"os/exec"
+)
+
+func execCommand(cmd string) (string, error) {
+	e := exec.Command("bash", "-c", cmd)
+	out, err := e.CombinedOutput()
+	if errors.Unwrap(err) == exec.ErrNotFound {
+		e = exec.Command("sh", "-c", cmd)
+		out, err = e.CombinedOutput()
+	}
+	return string(out), err
+}
+
+func execCommandStd(name string, args ...string) {
+	e := exec.Command(name, args...)
+	e.Stdout = os.Stdout
+	e.Stdin = os.Stdin
+	e.Stderr = os.Stderr
+	_ = e.Run()
+}