Get username of profile page

[Manos]

Hello, I created a custom page in my template folder where I placed the code below.

PHP

My Profile <?php echo do_shortcode('[userpro template=view]'); ?> My Posts <?php echo do_shortcode('[userpro template=postsbyuser postsbyuser_mode=grid postsbyuser_showthumb=1]'); ?> <center><a href="http://url/submissions/<strong>USERNAME</strong>" class="sc_button sc_button_style_blue sc_button_size_large">View All</a></center>

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My Profile <?php echo do_shortcode('[userpro template=view]'); ?> My Posts <?php echo do_shortcode('[userpro template=postsbyuser postsbyuser_mode=grid postsbyuser_showthumb=1]'); ?> <center><a href="http://url/submissions/<strong>USERNAME</strong>" class="sc_button sc_button_style_blue sc_button_size_large">View All</a></center>

This page is url.com/profile/username so, it shows info about a particular user. What I would like to do is, to get that user’s username to link a button to a page with all submissions. Any ideas how I can get that username? Thanks!