How to recursively add write permissions for the others group to all nested directories and files?

Question

linux

How is it possible to recursively add write (w) permissions for the others group to all nested directories and files, without changing the read and execute permissions for the same user group?

Answer 1

chmod -R g+w /path/to/directoryprovided that all files and directories belong to the others group

Answer 2

find /var/www/site.ru/ -type f -exec chmod -R g+w {} \;

find- recursive search
/var/www/site.ru path
-type fonly
-exec to execute files with found (find itself function) then
the command to
{}substitute the path of what will be found
\;- just close it.
and here are the classic changes in the rights to files and directories

find . -type d -exec chmod 755 {} \;
find . -type f -exec chmod 644 {} \;