Disallow: /some/fixed/path/admin/*

User-agent: *
Disallow: /path/with-trailing-slash/

<meta name="robots" content="noarchive">

<meta name="robots" content="noindex, noarchive">

<meta name="robots" content="noindex, nofollow, noarchive">

<meta name="robots" content="noindex, nofollow" />

<meta name="robots" content="noarchive" />