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Create
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Create
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<a href="#creating-a-simple-yaml-file" title="Creating a simple yaml file" class="md-nav__link">
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Creating a simple yaml file
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<a href="#creating-using-a-create-script" title="Creating using a create script" class="md-nav__link">
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Creating using a create script
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Convert
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Creating a simple yaml file
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Creating using a create script
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<a href="https://github.com/mikefarah/yq/edit/master/docs/create.md" title="Edit this page" class="md-icon md-content__icon"></a>
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<h1>Create</h1>
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<p>Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file. Currently this does not support creating multiple documents in a single yaml file.</p>
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<pre><code>yq n <path> <new value>
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</code></pre>
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<h3 id="creating-a-simple-yaml-file">Creating a simple yaml file<a class="headerlink" href="#creating-a-simple-yaml-file" title="Permanent link">¶</a></h3>
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<pre><code class="bash">yq n b.c cat
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</code></pre>
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<p>will output:</p>
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<pre><code class="yaml">b:
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c: cat
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</code></pre>
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<h3 id="creating-using-a-create-script">Creating using a create script<a class="headerlink" href="#creating-using-a-create-script" title="Permanent link">¶</a></h3>
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<p>Create scripts follow the same format as the update scripts.</p>
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<p>Given a script create_instructions.yaml of:</p>
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<pre><code class="yaml">b.c: 3
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b.e[0].name: Howdy Partner
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</code></pre>
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<p>then</p>
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<pre><code class="bash">yq n -s create_instructions.yaml
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</code></pre>
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<p>will output:</p>
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<pre><code class="yaml">b:
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c: 3
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e:
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- name: Howdy Partner
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</code></pre>
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<p>You can also pipe the instructions in:</p>
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<pre><code class="bash">cat create_instructions.yaml | yq n -s -
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</code></pre>
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<h3 id="keys-with-dots">Keys with dots<a class="headerlink" href="#keys-with-dots" title="Permanent link">¶</a></h3>
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<p>When specifying a key that has a dot use key lookup indicator.</p>
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<pre><code class="yaml">b:
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foo.bar: 7
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</code></pre>
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<pre><code class="bash">yaml r sample.yaml 'b[foo.bar]'
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</code></pre>
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<pre><code class="bash">yaml w sample.yaml 'b[foo.bar]' 9
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</code></pre>
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<p>Any valid yaml key can be specified as part of a key lookup.</p>
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<p>Note that the path is in quotes to avoid the square brackets being interpreted by your shell.</p>
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