.htaccess - Apache host with multiple alias/domains rewrite rule -

i have apache vhost server , multiple aliases. server being production/live domain , aliases being dev , staging servers. example:

servername foo.bar serveralias dev.superfoo.bar serveralias stage.superfoo.bar 

is there rewrite rule preserve domain, whatever may be, , redirect people domain/en-us/anything domain/en/anything?

i believe ^/en-us/(.*)$ foo.bar/en/1$ trick 1 domain. there way preserve domain instead of writing rule every alias?

to ensure correct domain retained on each one, may use %{http_host} variable in redirection:

rewriteengine on rewriterule ^/en-us/(.*)$ http://%{http_host}/en/$1 [l,r=301] 

the [r=301] flag issues permanent 301 redirect, in testing may want use 302 since browsers might aggressively cache redirect making hard debug.

above used leading / in ^/en-us. necessary if use rule @ virtualhost level. however, if use inside .htaccess file in document root, must not include /, in:

rewriteengine on rewriterule ^en-us/(.*)$ http://%{http_host}/en/$1 [l,r=301] 

the rules around noted in "what matched" section of rewriterule manual.