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<p>Insert at the beginning:</p><pre><code class="language-bash">arr=("new_element" "${arr[@]}")</code></pre><p>Append element:</p><pre><code class="language-bash">arr=("${arr[@]}" "new_element") arr+=("new_element")</code></pre><p>Insert at specific index (before #3):</p><pre><code class="language-bash">arr=("${arr[@]:0:2}" "new_element" "${arr[@]:2}")</code></pre>
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