As you may already know in Python you can format your string using format as below:

file_name = "/root/openvpn/{}.ovpn".format(my_file_name)
// Or
file_name = "/root/openvpn/%s.ovpn" % my_file_name

In golang you need to use Sprintf method of fmt package like follow:

var fileName = fmt.Sprintf("/root/openvpn/%s.ovpn", myFileName)

#python #golang #go #fmt #sprintf #format