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<h1>Prefix</h1>
<p>Paths can be prefixed using the 'prefix' command.
The complete yaml content will be nested inside the new prefix path.</p>
<pre><code>yq p &lt;yaml_file&gt; &lt;path&gt;
</code></pre>
<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
<p>Given a data1.yaml file of:</p>
<pre><code class="yaml">a: simple
b: [1, 2]
</code></pre>
<p>then</p>
<pre><code class="bash">yq p data1.yaml c
</code></pre>
<p>will output:</p>
<pre><code class="yaml">c:
a: simple
b: [1, 2]
</code></pre>
<h3 id="arbitrary-depth">Arbitrary depth<a class="headerlink" href="#arbitrary-depth" title="Permanent link">&para;</a></h3>
<p>Given a data1.yaml file of:</p>
<pre><code class="yaml">a:
b: [1, 2]
</code></pre>
<p>then</p>
<pre><code class="bash">yq p data1.yaml c.d
</code></pre>
<p>will output:</p>
<pre><code class="yaml">c:
d:
a:
b: [1, 2]
</code></pre>
<h3 id="updating-files-in-place">Updating files in-place<a class="headerlink" href="#updating-files-in-place" title="Permanent link">&para;</a></h3>
<p>Given a data1.yaml file of:</p>
<pre><code class="yaml">a: simple
b: [1, 2]
</code></pre>
<p>then</p>
<pre><code class="bash">yq p -i data1.yaml c
</code></pre>
<p>will update the data1.yaml file so that the path 'c' is prefixed to all other paths.</p>
<h3 id="multiple-documents-prefix-a-single-document">Multiple Documents - prefix a single document<a class="headerlink" href="#multiple-documents-prefix-a-single-document" title="Permanent link">&para;</a></h3>
<p>Given a data1.yaml file of:</p>
<pre><code class="yaml">something: else
---
a: simple
b: cat
</code></pre>
<p>then</p>
<pre><code class="bash">yq p -d1 data1.yaml c
</code></pre>
<p>will output:</p>
<pre><code class="yaml">something: else
---
c:
a: simple
b: cat
</code></pre>
<h3 id="multiple-documents-prefix-all-documents">Multiple Documents - prefix all documents<a class="headerlink" href="#multiple-documents-prefix-all-documents" title="Permanent link">&para;</a></h3>
<p>Given a data1.yaml file of:</p>
<pre><code class="yaml">something: else
---
a: simple
b: cat
</code></pre>
<p>then</p>
<pre><code class="bash">yq p -d'*' data1.yaml c
</code></pre>
<p>will output:</p>
<pre><code class="yaml">c:
something: else
---
c:
a: simple
b: cat
</code></pre>
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