How to list all url of contents? I have so many content type like article, contribution, event, c_program etc.

For all content url alias is, 

[site_name]/[content type name]/title

But we have some url alias that are like this, 

[site name]/title

So, I want to list all url of, 

[site name]/title format

How I can I list them out?
Use Drupal Pathauto

After enabling it go to admin/config/search/path/patterns and under Default path pattern (applies to all content types with blank patterns below) fieldset you'll get what you want.

Add your desired format there:

[site:name]/[node:title]




Once the configuration is done, click on admin/config/search/path/update_bulk and select Content paths from the given options.