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<!DOCTYPE html>
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<title>Top 20 CLI Tools Quick Reference — evolver-tools</title>
<meta name="description" content="Quick reference card for the 20 most useful evolver-tools commands. One pip install, zero dependencies, 260 tools. Print-friendly one-pager.">
<meta property="og:description" content="Quick reference: 20 essential evolver-tools CLI commands in one page.">
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<nav>
  <a href="index.html" class="logo"><em>λ</em>evolver</a>
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  <a href="top20.html" style="color:var(--accent)">Top 20</a>
  <a href="pricing.html">Pricing</a>
  <a href="https://github.com/evolver-dev/evolver-tools">GitHub →</a>
</nav>

<div class="container">

<h1>⚡ Top 20 CLI Tools — Quick Reference</h1>
<p class="subtitle">One <code>pip install evolver-tools</code> gives you 260 tools. Here are the 20 most useful ones.</p>

<div class="install-bar">
  <code>$ pip install evolver-tools</code>
  <div class="stats">
    <span>🔧 <strong>260</strong> tools</span>
    <span>📦 <strong>0</strong> deps</span>
    <span>⚡ <strong>1</strong> command</span>
  </div>
</div>

<!-- CATEGORY: Data -->
<div class="cat">
<h2>📊 Data — CSV, JSON, YAML</h2>
<table>
<tr><th>Command</th><th>What it does</th><th>Example</th></tr>
<tr>
  <td><code class="cmd">evtool csv-stats <span>file.csv</span></code></td>
  <td class="desc">Full column analysis: types, nulls, min/max, histograms, correlations</td>
  <td><code class="cmd">evtool csv-stats sales.csv <span>--corr</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool csv-filter <span>file.csv</span></code></td>
  <td class="desc">Filter rows where column matches a value</td>
  <td><code class="cmd">evtool csv-filter data.csv <span>region APAC</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool csv-slice <span>file.csv</span></code></td>
  <td class="desc">Extract columns by index or name, or slice rows</td>
  <td><code class="cmd">evtool csv-slice data.csv <span>--cols name,email</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool json-pretty</code></td>
  <td class="desc">Pretty-print, validate, or minify JSON from stdin/file</td>
  <td><code class="cmd">cat data.json | evtool json-pretty</code></td>
</tr>
<tr>
  <td><code class="cmd">evtool chart-cli</code></td>
  <td class="desc">Terminal charts: bar (h/v), line, pie, histogram</td>
  <td><code class="cmd">evtool chart-cli <span>--type bar data.csv</span></code></td>
</tr>
</table>
</div>

<!-- CATEGORY: System -->
<div class="cat">
<h2>🖥️ System — Monitor, Inspect, Manage</h2>
<table>
<tr><th>Command</th><th>What it does</th><th>Example</th></tr>
<tr>
  <td><code class="cmd">evtool sysmon</code></td>
  <td class="desc">Live TUI dashboard: CPU, memory, disk, network, top processes</td>
  <td><code class="cmd">evtool sysmon</code></td>
</tr>
<tr>
  <td><code class="cmd">evtool disk-usage</code></td>
  <td class="desc">Show disk usage by directory, human-readable</td>
  <td><code class="cmd">evtool disk-usage <span>/var/log</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool portcheck</code></td>
  <td class="desc">Scan open ports on a host with service detection</td>
  <td><code class="cmd">evtool portcheck <span>example.com</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool process-kill</code></td>
  <td class="desc">Find and kill processes by name, port, or user</td>
  <td><code class="cmd">evtool process-kill <span>--port 3000</span></code></td>
</tr>
</table>
</div>

<!-- CATEGORY: Network -->
<div class="cat">
<h2>🌐 Network — DNS, HTTP, SSL</h2>
<table>
<tr><th>Command</th><th>What it does</th><th>Example</th></tr>
<tr>
  <td><code class="cmd">evtool dns-lookup</code></td>
  <td class="desc">DNS resolution: A, AAAA, MX, TXT, NS, CNAME, SOA</td>
  <td><code class="cmd">evtool dns-lookup <span>github.com MX</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool api-tester</code></td>
  <td class="desc">HTTP API testing: headers, methods, timing, status codes</td>
  <td><code class="cmd">evtool api-tester <span>GET /api/users</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool cert-check</code></td>
  <td class="desc">Check SSL certificate expiry and details</td>
  <td><code class="cmd">evtool cert-check <span>example.com</span></code></td>
</tr>
</table>
</div>

<!-- CATEGORY: Security -->
<div class="cat">
<h2>🔐 Security — Encode, Hash, Encrypt</h2>
<table>
<tr><th>Command</th><th>What it does</th><th>Example</th></tr>
<tr>
  <td><code class="cmd">evtool b64 <span>encode|decode</span></code></td>
  <td class="desc">Base64 encode/decode with auto-detection</td>
  <td><code class="cmd">evtool b64 encode <span>"hello world"</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool hashsum</code></td>
  <td class="desc">File hash verification: MD5, SHA-1, SHA-256, SHA-512, BLAKE2</td>
  <td><code class="cmd">evtool hashsum <span>file.iso sha256</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool passgen</code></td>
  <td class="desc">Generate strong passwords with configurable length and character sets</td>
  <td><code class="cmd">evtool passgen <span>--length 20 --symbols</span></code></td>
</tr>
</table>
</div>

<!-- CATEGORY: Developer -->
<div class="cat">
<h2>🛠️ Developer — Git, Code, Cron</h2>
<table>
<tr><th>Command</th><th>What it does</th><th>Example</th></tr>
<tr>
  <td><code class="cmd">evtool ff</code></td>
  <td class="desc">Interactive fuzzy finder — pure Python, no fzf required</td>
  <td><code class="cmd">ls | evtool ff</code></td>
</tr>
<tr>
  <td><code class="cmd">evtool project-doctor</code></td>
  <td class="desc">Project health check: structure, quality, deps, scoring</td>
  <td><code class="cmd">evtool project-doctor <span>.</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool cron-pretty</code></td>
  <td class="desc">Translate cron expressions to plain English</td>
  <td><code class="cmd">evtool cron-pretty <span>'*/15 * * * *'</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool changelog-gen</code></td>
  <td class="desc">Generate CHANGELOG.md from git log</td>
  <td><code class="cmd">evtool changelog-gen <span>--from v1.0</span></code></td>
</tr>
</table>
</div>

<!-- CATEGORY: Utilities -->
<div class="cat">
<h2>🎨 Terminal & Utilities</h2>
<table>
<tr><th>Command</th><th>What it does</th><th>Example</th></tr>
<tr>
  <td><code class="cmd">evtool color-convert</code></td>
  <td class="desc">Convert colors: hex, rgb, hsl, hsv, named</td>
  <td><code class="cmd">evtool color-convert <span>#ff6600 rgb</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool ascii-banner</code></td>
  <td class="desc">ASCII art banners: block, simple, wide, big fonts</td>
  <td><code class="cmd">evtool ascii-banner <span>"HELLO" --font block</span></code></td>
</tr>
<tr>
  <td><code class="cmd">evtool ren</code></td>
  <td class="desc">Batch rename files: prefix, suffix, replace, regex, numbering</td>
  <td><code class="cmd">evtool ren <span>--prefix backup_ *.txt</span></code></td>
</tr>
</table>
</div>

<p style="text-align:center; margin-top: 2rem; color: var(--text2); font-size: 0.85rem;">
  👉 Get all 260 tools: <code style="background: var(--bg3); padding: 0.2rem 0.6rem; border-radius: 4px; color: var(--green);">pip install evolver-tools</code>
</p>

</div>

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