Print the head and the tail of a file simultaneously with awk

<!DOCTYPE html> <html> <head> <meta http-equiv="Content-type" content="text/html; charset=utf-8"> <meta http-equiv="Content-Security-Policy" content="default-src 'none'; style-src 'unsafe-inline'; img-src data:; connect-src 'self'"> <title>Site not found · GitHub Pages</title> <style type="text/css" media="screen"> body { background-color: #f1f1f1; margin: 0; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; } .container { margin: 50px auto 40px auto; width: 600px; text-align: center; } a { color: #4183c4; text-decoration: none; } a:hover { text-decoration: underline; } h1 { width: 800px; position:relative; left: -100px; letter-spacing: -1px; line-height: 60px; font-size: 60px; font-weight: 100; margin: 0px 0 50px 0; text-shadow: 0 1px 0 #fff; } p { color: rgba(0, 0, 0, 0.5); margin: 20px 0; line-height: 1.6; } ul { list-style: none; margin: 25px 0; padding: 0; } li { display: table-cell; font-weight: bold; width: 1%; } .logo { display: inline-block; margin-top: 35px; } .logo-img-2x { display: none; } @media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and ( min--moz-device-pixel-ratio: 2), only screen and ( -o-min-device-pixel-ratio: 2/1), only screen and ( min-device-pixel-ratio: 2), only screen and ( min-resolution: 192dpi), only screen and ( min-resolution: 2dppx) { .logo-img-1x { display: none; } .logo-img-2x { display: inline-block; } } #suggestions { margin-top: 35px; color: #ccc; } #suggestions a { color: #666666; font-weight: 200; font-size: 14px; margin: 0 10px; } </style> </head> <body> <div class="container"> <h1>404</h1> <p><strong>There isn't a GitHub Pages site here.</strong></p> <p> If you're trying to publish one, <a href="https://help.github.com/pages/">read the full documentation</a> to learn how to set up <strong>GitHub Pages</strong> for your repository, organization, or user account. </p> <div id="suggestions"> <a href="https://githubstatus.com">GitHub Status</a> — <a href="https://twitter.com/githubstatus">@githubstatus</a> </div> <a href="/" class="logo logo-img-1x"> <img width="32" height="32" title="" alt="" 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</a> <a href="/" class="logo logo-img-2x"> <img width="32" height="32" title="" alt="" 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</a> </div> </body> </html>

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