exit

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    <div class="example" id="exit">
      <h2><a href="./">Go by Example</a>: Exit</h2>

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            <p>Use <code>os.Exit</code> to immediately exit with a given
status.</p>

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	        <a href="http://play.golang.org/p/CDiAh9SXRM"><img title="Run code" src="play.png" class="run" /></a>
            <div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
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            <div class="highlight"><pre><span class="kn">import</span> <span class="s">&quot;fmt&quot;</span>
<span class="kn">import</span> <span class="s">&quot;os&quot;</span>
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            <div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
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            <p><code>defer</code>s will <em>not</em> be run when using <code>os.Exit</code>, so
this <code>fmt.Println</code> will never be called.</p>

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            <div class="highlight"><pre>    <span class="k">defer</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;!&quot;</span><span class="p">)</span>
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            <p>Exit with status 3.</p>

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            <div class="highlight"><pre>    <span class="nx">os</span><span class="p">.</span><span class="nx">Exit</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
<span class="p">}</span>
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            <p>Note that unlike e.g. C, Go does not use an integer
return value from <code>main</code> to indicate exit status. If
you&rsquo;d like to exit with a non-zero status you should
use <code>os.Exit</code>.</p>

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            <p>If you run <code>exit.go</code> using <code>go run</code>, the exit
will be picked up by <code>go</code> and printed.</p>

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            <div class="highlight"><pre><span class="gp">$</span> go run exit.go
<span class="go">exit status 3</span>
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            <p>By building and executing a binary you can see
the status in the terminal.</p>

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            <div class="highlight"><pre><span class="gp">$</span> go build exit.go
<span class="gp">$</span> ./exit
<span class="gp">$</span> <span class="nb">echo</span> <span class="nv">$?</span>
<span class="go">3</span>
</pre></div>

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            <p>Note that the <code>!</code> from our program never got printed.</p>

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