htaccess subdomain redirect

[karmargin]

I've got a domain with many subdomains, eg. [sub1.domain.com....] I need to redirect all of them to a directory on the root domain, eg: [domain.com...]

is there a 301 code that i can place on the root directory to redirect all the subdomains?

[jdMorgan]

This is simply the standard non-www to www- domain canonicalization redirect previously discussed many times:

# If HTTP hostname header is non-blank
RewriteCond %{HTTP_HOST} .
# and if requested hostname is NOT www.example.com
RewriteCond %{HTTP_HOST} !^www\.example\.com
# Redirect to www.example.com
RewriteRule (.*) http://www.example.com/$1 [R=301,L]

Jim