如何在保存时阻止Sublime Text 2删除“Read＆Execute”标志

Using Sublime Text 2, I sometimes have to edit shell files that are executed by bash in a cron. However, when I save these files, the execute flag is being removed from the file, causing the cron to fail when trying to execute the file. I have to chmod the file every time I change it. Previously, using Ultra-Edit, I never had this issue.Using Sublime Text 2, I sometimes have to edit