Replacing "subdomain." prefix with empty string ""

[rivaros]

Have recently come across your wonderful script to cure Wordpress database copies between domains.

Have one more challenge - I just need to replace "staging." subdomain in all urls mentioned in sql file (including serialized PHP objects).

So replacement is just empty string (""). My wordpress installation is multi-site, so there are multiple subsiteX.maindomain.com urls as well as staging.subsiteX.maindomain.com on staging server.

While migrating from staging to production we need to delete away the "staging." subdomain.

[rivaros]

@joshbetz In your code you check that replacement is at least 2 chars

                to = args[(i*2)+1]
		if !validInput(to, minOutLength) {
			fmt.Fprintln(os.Stderr, "Invalid <to>, minimum length is 2")
			os.Exit(3)
			return
		}

Could this be a problem if that check is removed?

[joshbetz]

Can you replace staging.subsiteX.maindomain.com with subsiteX.maindomain.com?