trouble htaccess redirects non-www page - .htaccess

Question

newbie on htaccess and redirects, I hope someone can help me with this. At the moment all but one http urls are redirecting correctly to https.
The following script has been updated as requested to remove the duplicate, the problem still persists.
Examples followed:
http://example.com redirects to https://www.example.com/
http://www.example.com redirects to https://www.example.com/
http://subdomain.example.com redirects to https://subdomain.example.com
Trouble comes when
http://example.com/somepage this only redirects to https://www.example.com/
Following is a snip from my htaccess file.
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L,NE]
RewriteBase /
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule ^index\.php$ - [L]
# add a trailing slash to /wp-admin
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule ^admin$ admin/ [R=301,L]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule ^ - [L]
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule ^(.*\.php)$ $1 [L]
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule . index.php [L]

Answer 1

RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
This is a valid way of redirecting all non https:// calls to their secure versions. Using this would redirect http://example.com/somepage to https://www.example.com/somepage
Perhaps your 301 is just cached? Clear your cache and try again. I would recommend using [R=302] flags until you confirm the redirects are working and then update your .htaccess to use 301's.