How to lock and unlock scripts ?
Is there any way to lock scripts without bundling it?
If its lock how can we unlock it?
You should be able to make the file itself private (there is a checkbox on the file itself, not the script record), which will allow only the owner access to it. You cannot unlock bundled scripts that are locked. This is usually done to make sure end users dont fudge with something and break functionality and to protect intellectual property.