615 lines
13 KiB
HTML
615 lines
13 KiB
HTML
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This is <a href="."><em>Devhints.io cheatsheets</em></a> — a collection of cheatsheets I've written.
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<div class='post-headline -cheatsheet'>
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<p class='prelude'><span></span></p>
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<h1><span>Command line stuff</span></h1>
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<div class='post-content -cheatsheet'>
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<h2 id="list-ls">List (ls)</h2>
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<pre><code>ls [options] [paths]
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</code></pre>
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<h3 id="format">Format</h3>
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<table class="shortcuts">
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<thead>
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<tr>
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<th>Switch</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code>-1</code></td>
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<td>One entry per line</td>
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</tr>
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<tr>
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<td><code>-l</code></td>
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<td>Long view</td>
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</tr>
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<tr>
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<td><code>-o</code></td>
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<td>Long view (without groups)</td>
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</tr>
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<tr>
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<td><code>-C</code></td>
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<td>Multicolumn (sorted horizontally)</td>
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</tr>
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<tr>
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<td><code>-x</code></td>
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<td>Multicolumn (sorted vertically)</td>
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</tr>
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</tbody>
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<tbody>
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<tr>
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<td><code>-F</code></td>
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<td>Add / after directories</td>
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</tr>
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<tr>
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<td><code>-G</code></td>
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<td>Color</td>
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</tr>
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</tbody>
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</table>
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<h3 id="options">Options</h3>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-R</code></td>
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<td>Recurse</td>
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</tr>
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<tr>
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<td><code>-a</code></td>
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<td>Include hidden (dotfiles)</td>
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</tr>
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<tr>
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<td><code>-A</code></td>
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<td>Include hidden (but not . and ..)</td>
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</tr>
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</tbody>
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</table>
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<h3 id="sorting">Sorting</h3>
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<table class="shortcuts">
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<thead>
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<tr>
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<th>Switch</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code>-r</code></td>
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<td>reverse order</td>
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</tr>
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<tr>
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<td><code>-S</code></td>
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<td>sort by size</td>
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</tr>
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<tr>
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<td><code>-t</code></td>
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<td>sort by time modified</td>
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</tr>
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<tr>
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<td><code>-u</code></td>
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<td>sort by time accessed</td>
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</tr>
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<tr>
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<td><code>-U</code></td>
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<td>sort by time created</td>
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</tr>
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<tr>
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<td><code>-c</code></td>
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<td>sort by time status was changed</td>
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</tr>
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</tbody>
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<tbody>
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<tr>
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<td><code>-h</code></td>
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<td>Human-readable size (3k)</td>
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</tr>
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</tbody>
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</table>
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<p><br /></p>
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<h2 id="tail">Tail</h2>
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<pre><code>tail [-F | -f | -r] [-bN | -cN | -nN] [file ...]
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</code></pre>
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<h3 id="modes">Modes</h3>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-f</code></td>
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<td>follow</td>
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</tr>
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<tr>
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<td><code>-F</code></td>
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<td>follow by filename (accounts for log rotation)</td>
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</tr>
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<tr>
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<td><code>-r</code></td>
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<td>Reverse order</td>
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</tr>
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</tbody>
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</table>
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<h3 id="options-1">Options</h3>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-bN</code></td>
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<td>N*512 bytes</td>
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</tr>
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<tr>
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<td><code>-cN</code></td>
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<td>N bytes</td>
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</tr>
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<tr>
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<td><code>-nN</code></td>
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<td>N lines</td>
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</tr>
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<tr>
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<td><code>+N</code></td>
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<td>Start from line N</td>
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</tr>
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</tbody>
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</table>
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<p><br /></p>
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<h2 id="sudo">Sudo</h2>
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<pre><code>sudo [options] <command>
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</code></pre>
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<h3 id="listing">Listing</h3>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-l</code></td>
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<td>List allowed commands</td>
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</tr>
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</tbody>
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</table>
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<h3 id="options-2">Options</h3>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-A</code></td>
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<td>Use $SUDO_ASKPASS</td>
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</tr>
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<tr>
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<td><code>-b</code></td>
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<td>Run in background</td>
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</tr>
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<tr>
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<td><code>-E</code></td>
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<td>Preserve environment</td>
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</tr>
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<tr>
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<td><code>-H</code></td>
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<td>use target’s $HOME</td>
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</tr>
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<tr>
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<td><code>-n</code></td>
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<td>Don’t prompt for password</td>
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</tr>
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<tr>
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<td><code>-P</code></td>
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<td>Preserve group vector</td>
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</tr>
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<tr>
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<td><code>-S</code></td>
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<td>Read password from stdin</td>
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</tr>
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</tbody>
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</table>
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<h3 id="file-descriptors">File descriptors</h3>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-C fd</code></td>
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<td>Close all open file descriptors</td>
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</tr>
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</tbody>
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</table>
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<h3 id="prompt">Prompt</h3>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-p prompt</code></td>
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<td>Custom prompt (-p “%p password:”)</td>
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</tr>
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</tbody>
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</table>
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<h3 id="interactive">Interactive</h3>
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<table class="shortcuts">
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<thead>
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<tr>
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<th>Switch</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code>-i [cmd]</code></td>
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<td>Interactive shell without variables</td>
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</tr>
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<tr>
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<td><code>-s [cmd]</code></td>
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<td>Interactive shell</td>
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</tr>
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</tbody>
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<tbody>
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<tr>
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<td><code>-u user</code></td>
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<td>run as this user</td>
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</tr>
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<tr>
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<td><code>-g group</code></td>
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<td>run as this group</td>
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</tr>
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</tbody>
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</table>
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<h3 id="timestamp">Timestamp</h3>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-v</code></td>
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<td>revalidate timestamp for 5 mins</td>
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</tr>
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<tr>
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<td><code>-k</code></td>
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<td>invalidate timestamp</td>
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</tr>
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<tr>
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<td><code>-K</code></td>
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<td>just like -k</td>
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</tr>
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</tbody>
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</table>
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<p><br /></p>
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<h2 id="wc-word-count">wc (Word count)</h2>
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<pre><code>... | wc [options]
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</code></pre>
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<table class="shortcuts">
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<tbody>
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<tr>
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<td><code>-c</code></td>
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<td>Bytes</td>
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</tr>
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<tr>
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<td><code>-l</code></td>
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<td>Lines</td>
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</tr>
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<tr>
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<td><code>-m</code></td>
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<td>Characters (incl multi-byte)</td>
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</tr>
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<tr>
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<td><code>-w</code></td>
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<td>Words</td>
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</tr>
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</tbody>
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</table>
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<p><br /></p>
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<h2 id="search-and-replace-in-all-files">Search-and-replace in all files</h2>
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<pre><code>perl -p -i -e 's/hello/HELLO/g' **/*
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</code></pre>
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||
<p><br /></p>
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<h2 id="grep">Grep</h2>
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||
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||
<pre><code>grep [options] [pattern] [file ...]
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</code></pre>
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||
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||
<h3 id="options-3">Options</h3>
|
||
|
||
<table class="shortcuts">
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||
<thead>
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||
<tr>
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||
<th>Switch</th>
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||
<th>Description</th>
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||
</tr>
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||
</thead>
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||
<tbody>
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||
<tr>
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||
<td><code>-A num</code></td>
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<td>Print <code>num</code> lines of training context</td>
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</tr>
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</tbody>
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<tbody>
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<tr>
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<td><code>-G</code></td>
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<td>–basic-regexp (default)</td>
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</tr>
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<tr>
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<td><code>-E</code></td>
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<td>–extended-regexp</td>
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</tr>
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<tr>
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<td><code>-P</code></td>
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<td>–perl-regexp</td>
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</tr>
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</tbody>
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<tbody>
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<tr>
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<td><code>-f file</code></td>
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<td>–file (Get patterns for file)</td>
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</tr>
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<tr>
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<td><code>-F</code></td>
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<td>–fixed-strings</td>
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</tr>
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</tbody>
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<tbody>
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<tr>
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<td><code>-h</code></td>
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<td>–no-filename</td>
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</tr>
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<tr>
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<td><code>-H</code></td>
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<td>–with-filename</td>
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</tr>
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</tbody>
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<tbody>
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<tr>
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<td><code>-l</code></td>
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<td>–files-with-matches (just print filenames)</td>
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</tr>
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<tr>
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<td><code>-L</code></td>
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<td>–files-without-match</td>
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</tr>
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</tbody>
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<tbody>
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||
<tr>
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||
<td><code>-r, -R</code></td>
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<td>–recursive</td>
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</tr>
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<tr>
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<td><code>-v</code></td>
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<td>–invert-match</td>
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</tr>
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<tr>
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<td><code>-i</code></td>
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<td>–ignore-case</td>
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</tr>
|
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|
||
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|
||
|
||
<h3 id="synonyms">Synonyms</h3>
|
||
|
||
<pre><code>egrep => grep -E
|
||
fgrep => grep -F
|
||
</code></pre>
|
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<strong><a href=".">Devhints.io cheatsheets</a></strong> is a collection of cheatsheets I've written over the years.
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<i class='fleuron'></i>
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I'm <a href="http://ricostacruz.com">Rico Sta. Cruz</a>.
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Check out my <a href="http://ricostacruz.com/til">Today I learned blog</a> for more.
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