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<!DOCTYPE html>
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    	<title>mddc-del-block-sym</title>
    	<meta name="Description" content="Reference of the mddc-del-block-sym program." />
    	<meta name="Keywords" content="mdevd-conf dev blockdev symlink disk" />
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	<header>
		<p>
			<a href="//0x53.net/software/mdevd-conf">mdevd-conf</a>
			<br />
			<a href="//0x53.net/software">Software</a>
			<br />
			<a href="//0x53.net">0x53.net</a>
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	<body>
		<h1>The mddc-del-block-sym program</h1>
		<p>
    		mddc-del-block-sym is a helper script to create
    		symlinks at <code>/dev/disk/by-*</code>.
		</p>
		<h2>Interface</h2>
		<pre>     mddc-del-block-sym</pre>
		<ul>
			<li>
    			mddc-del-block-sym takes no arguments.
			</li>
			<li>
    			It reads the <code>MDEV</code> environment variable,
				if it is empty it exits 100.
			</li>
			<li>
    			for each <code><var>${FILE}</var></code> in <code>/dev/disk/*/</code>
    			it checks whether it is a symlink to <code><var>${MDEV}</var></code>
    			or its partition and, if this is the case,
    			deletes <code><var>${FILE}</var></code>.
			</li>
		</ul>
		<h2>Exit codes</h2>
		<ul>
			<li>
    			100 if a critical environment variable is missing.
			</li>
			<li>
    			Since mddc-del-block-sym is an
				<a href="https://skarnet.org/software/execline/">execline</a>
				script, it exits with an approximation
				of employed program that failed.
			</li>
			<li>
    			mddc-del-block-sym mostly uses
				<a href="https://skarnet.org/software/execline/">execline</a>
				software, the exit behaviour of which can be looked up on
				their respective pages.
			</li>
			<li>
    			See also:
				<a href="https://skarnet.org/software/execline/exitcodes.html">execline exit code handling</a>.
			</li>
		</ul>
		<h2>Options</h2>
		<ul>
			<li>
    			There are no options to mddc-del-block-sym.
			</li>
		</ul>
	</body>
</html>