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Basic
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From Stdin
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Arrays
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<h1>Read</h1>
<pre><code>yaml r &lt;yaml file&gt; &lt;path&gt;
</code></pre>
<h3 id="basic">Basic</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yaml r sample.yaml b.c
</code></pre>
<p>will output the value of '2'.</p>
<h3 id="from-stdin">From Stdin</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="bash">cat sample.yaml | yaml r - b.c
</code></pre>
<p>will output the value of '2'.</p>
<h3 id="splat">Splat</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">---
bob:
item1:
cats: bananas
item2:
cats: apples
</code></pre>
<p>then</p>
<pre><code class="bash">yaml r sample.yaml bob.*.cats
</code></pre>
<p>will output</p>
<pre><code class="yaml">- bananas
- apples
</code></pre>
<h3 id="handling-in-the-yaml-key">Handling '.' in the yaml key</h3>
<p>Given a sample.yaml file of:</p>
<pre><code class="yaml">b.x:
c: 2
</code></pre>
<p>then</p>
<pre><code class="bash">yaml r sample.yaml \&quot;b.x\&quot;.c
</code></pre>
<p>will output the value of '2'.</p>
<h3 id="arrays">Arrays</h3>
<p>You can give an index to access a specific element:
e.g.: given a sample file of</p>
<pre><code class="yaml">b:
e:
- name: fred
value: 3
- name: sam
value: 4
</code></pre>
<p>then</p>
<pre><code>yaml r sample.yaml b.e[1].name
</code></pre>
<p>will output 'sam'</p>
<h3 id="array-splat">Array Splat</h3>
<p>e.g.: given a sample file of</p>
<pre><code class="yaml">b:
e:
- name: fred
value: 3
- name: sam
value: 4
</code></pre>
<p>then</p>
<pre><code>yaml r sample.yaml b.e[*].name
</code></pre>
<p>will output:</p>
<pre><code>- fred
- sam
</code></pre>
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