Here's my dilemma now:

I have lots of links from multiple subdomains

https://dev.example.com/abc.html

https://xyz.example.com/abc.html

how can i redirect them using htaccess

Redirect 301 https://dev.example.com/abc.html https://xyz.example.com/abc obviously doesn't work sine it can only work with /abc.

And as i mentioned i have a lot of links there, and for some reason i would like to have it in htaccess

Note that the abc is a valid page which exists on the destination url, therefore it will cause infinite loop if i use /abc because it will neglect the subdomain.

The problem isn't redirecting from subdomain to another, that is not the case, the case is that i have links that i would like to redirect from subdomains to another, specific links.

Therefore i'm not looking for something like nonwww to www kind of syntax.

I'm not looking to have something like this:

RewriteEngine on
RewriteBase /
rewritecond %{http_host} ^example.com [nc]
rewriterule ^(.*)$ http://www.example.com/$1 [r=301,nc]

Unless it can be done with something like grouping all links under a certain subdomain dev.example.com then have all the links listed under it followed by the target url.

That could be done with php, but i prefer to have it in htaccess.

The closest solution i believe it could work is to have those links scattered inside apache's vhosts

<VirtualHost *>
  ServerName dev.example.com
  Redirect 301 / http://example.com/
  # Have the rest of links here
</VirtualHost>

Then

<VirtualHost *>
  ServerName xyz.example.com
  Redirect 301 / http://example.com/
  # have the rest of the links here
</VirtualHost>

Valid?

Update

RewriteCond %{HTTP_HOST} ^example\.com$ [OR]
RewriteCond %{HTTP_HOST} ^www\.example\.com$
RewriteRule ^tags\/xyz\.html\ $ "https\:\/\/dev\.example\.com\/" [R=301,L]
RewriteCond %{HTTP_HOST} ^example\.com$ [OR]
RewriteCond %{HTTP_HOST} ^www\.example\.com$
RewriteRule ^abcd$ "https\:\/\/dev\.example\.com\/" [R=301,L]

That's what i got in htaccess when i create the redirect from cpanel. so it validates what the solution i reached.

I'm close to finding the solution, now for ease of managing these, i'm looking for a way to group them all in one rule container.