Redirect Http to Https

RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://www.abc.com [L,R=301]
# .htaccess main domain to subdirectory redirect

# Do not change this line.

RewriteEngine on

RewriteCond %{HTTP_HOST} ^old.abc.com$   
RewriteRule !^oldwordpress/ oldwordpress%{REQUEST_URI} [L]

# Change example.com to be your main domain.

RewriteCond %{HTTP_HOST} ^(www.)?abc.com$

# Change ‘subdirectory’ to be the directory you will use for your main domain.

RewriteCond %{REQUEST_URI} !^/ng2-abc/

# Don’t change the following two lines.

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

# Change ‘subdirectory’ to be the directory you will use for your main domain.

RewriteRule ^(.*)$ /ng2-abc/$1

# Change example.com to be your main domain again.

# Change ‘subdirectory’ to be the directory you will use for your main domain

# followed by / then the main file for your site, index.php, index.html, etc.
RewriteCond %{HTTP_HOST} ^(www.)?abc.com$

RewriteRule ^(/)?$ ng2-abc/index.html [L]