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<title data-rh="true">The ELP CLI | ELP</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://whatsapp.github.io/erlang-language-platform/docs/get-started/cli/"><meta data-rh="true" name="docusaurus_locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docusaurus_version" content="current"><meta data-rh="true" name="docusaurus_tag" content="docs-default-current"><meta data-rh="true" name="docsearch:version" content="current"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-current"><meta data-rh="true" property="og:title" content="The ELP CLI | ELP"><meta data-rh="true" name="description" content="ELP can be used from the command line. Please ensure you read the install section to learn how to install it."><meta data-rh="true" property="og:description" content="ELP can be used from the command line. Please ensure you read the install section to learn how to install it."><link data-rh="true" rel="icon" href="/erlang-language-platform/img/elp_icon_color.svg"><link data-rh="true" rel="canonical" href="https://whatsapp.github.io/erlang-language-platform/docs/get-started/cli/"><link data-rh="true" rel="alternate" href="https://whatsapp.github.io/erlang-language-platform/docs/get-started/cli/" hreflang="en"><link data-rh="true" rel="alternate" href="https://whatsapp.github.io/erlang-language-platform/docs/get-started/cli/" hreflang="x-default"><link rel="stylesheet" href="/erlang-language-platform/assets/css/styles.93dc32ac.css">
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class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>The ELP CLI</h1><p>ELP can be used from the command line. Please ensure you read the <a href="/erlang-language-platform/docs/get-started/install/">install</a> section to learn how to install it.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="verify-elp-is-correctly-installed">Verify <code>elp</code> is correctly installed<a href="#verify-elp-is-correctly-installed" class="hash-link" aria-label="Direct link to verify-elp-is-correctly-installed" title="Direct link to verify-elp-is-correctly-installed"></a></h2><div class="theme-admonition theme-admonition-tip alert alert--success admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 12 16"><path fill-rule="evenodd" d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"></path></svg></span>tip</div><div class="admonitionContent_S0QG"><p>On Mac you may get a warning, saying &quot;elp cannot be opened because the developer cannot be verified&quot;. To solve this, go to <code>Preferences -&gt; Security and Privacy -&gt; General</code> and add an exception for <code>elp</code>. Alternatively, you can build the project from source (see below)</p></div></div><p>Open a terminal and run:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">$ elp version</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>You should see something like:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">elp 1.1.0+build-2024-01-18</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>If that&#x27;s the case, you&#x27;re ready to roll!</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="getting-help">Getting Help<a href="#getting-help" class="hash-link" aria-label="Direct link to Getting Help" title="Direct link to Getting Help"></a></h2><p>All <code>elp</code> commands are available through the help:</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">$ elp -h</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">Usage: [--log-file LOG_FILE] [--no-log-buffering] [COMMAND ...]</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">Available options:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> --log-file &lt;LOG_FILE&gt;</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> --no-log-buffering</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> -h, --help Prints help information</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">Available commands:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> eqwalize Eqwalize specified module</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> eqwalize-all Eqwalize all opted-in modules in a project</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> eqwalize-app Eqwalize all opted-in modules in specified application</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> eqwalize-target Eqwalize all opted-in modules in specified buck target</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> lint Parse files in project and emit diagnostics, optionally apply fixes.</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> server Run lsp server</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> generate-completions Generate shell completions</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> parse-all Dump ast for all files in a project for specified rebar.config file</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> parse-elp Tree-sitter parse all files in a project for specified rebar.config file</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> build-info Generate build info file</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> version Print version</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> shell Starts an interactive ELP shell</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> eqwalize-stats Return statistics about code quality for eqWAlizer</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> explain Explain a diagnostic code</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> project-info Generate project info file</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> glean Glean indexer</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="elp-server"><code>elp server</code><a href="#elp-server" class="hash-link" aria-label="Direct link to elp-server" title="Direct link to elp-server"></a></h2><p>Start a LSP server. The command does not return.</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">$ elp server</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="elp-eqwalize"><code>elp eqwalize</code><a href="#elp-eqwalize" class="hash-link" aria-label="Direct link to elp-eqwalize" title="Direct link to elp-eqwalize"></a></h2><p>Run the <em>eqWAlizer</em> typechecker against an Erlang module.</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">$ elp eqwalize &lt;module&gt;</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="elp-eqwalize-all"><code>elp eqwalize-all</code><a href="#elp-eqwalize-all" class="hash-link" aria-label="Direct link to elp-eqwalize-all" title="Direct link to elp-eqwalize-all"></a></h2><p>Run the <em>eqWAlizer</em> typechecker against all <em>src</em> modules in a project.</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">$ elp eqwalize-all</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/erlang-language-platform/docs/get-started/install/"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Install ELP</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/erlang-language-platform/docs/get-started/editors/"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Configure Your Editor</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#verify-elp-is-correctly-installed" class="table-of-contents__link toc-highlight">Verify <code>elp</code> is correctly installed</a></li><li><a href="#getting-help" class="table-of-contents__link toc-highlight">Getting Help</a></li><li><a href="#elp-server" class="table-of-contents__link toc-highlight"><code>elp server</code></a></li><li><a href="#elp-eqwalize" class="table-of-contents__link toc-highlight"><code>elp eqwalize</code></a></li><li><a href="#elp-eqwalize-all" class="table-of-contents__link toc-highlight"><code>elp 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