<code>!</code> shell variable holds the PID of the last executed command.
<pre class="language-bash"><code class="language-bash">long-process &#x26;
</code></pre>
<pre><code>[1] 589
</code></pre>
Access it as <code>$!</code>:
<pre class="language-bash"><code class="language-bash">echo $!
</code></pre>
Assign it to a variable:
<pre class="language-bash"><code class="language-bash">long-process &#x26; export LONG_PROCESS_PID=$!
</code></pre>

`!` shell variable holds the PID of the last executed command. Don't forget to access it by prefixing with `$` i.e. `$!`.


Shell: Get the PID of the last command