How to replce underscores with hyphens in url structure for wordpress site?

[pharmasecure]

How to replce underscores with hyphens in url structure for wordpress site?

 

[onlinepaystubs]

301 redirect or
htaccess file redirection

 

[davidweb09]

To set Permalink is best way to change your old URL structure easily. https://ultimate-finishes.com/