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<!doctype html> <html> <title>npm-run-script</title> <meta charset="utf-8"> <link rel="stylesheet" type="text/css" href="../../static/style.css"> <link rel="canonical" href="https://www.npmjs.org/doc/cli/npm-run-script.html"> <script async=true src="../../static/toc.js"></script> <body> <div id="wrapper"> <h1><a href="../cli/npm-run-script.html">npm-run-script</a></h1> <p>Run arbitrary package scripts</p> <h2 id="synopsis">SYNOPSIS</h2> <pre><code>npm run-script <command> [-- <args>...] alias: npm run </code></pre><h2 id="description">DESCRIPTION</h2> <p>This runs an arbitrary command from a package's <code>"scripts"</code> object. If no <code>"command"</code> is provided, it will list the available scripts. <code>run[-script]</code> is used by the test, start, restart, and stop commands, but can be called directly, as well. When the scripts in the package are printed out, they're separated into lifecycle (test, start, restart) and directly-run scripts.</p> <p>As of <a href="http://blog.npmjs.org/post/98131109725/npm-2-0-0"><code>npm@2.0.0</code></a>, you can use custom arguments when executing scripts. The special option <code>--</code> is used by <a href="http://goo.gl/KxMmtG">getopt</a> to delimit the end of the options. npm will pass all the arguments after the <code>--</code> directly to your script:</p> <pre><code>npm run test -- --grep="pattern" </code></pre><p>The arguments will only be passed to the script specified after <code>npm run</code> and not to any pre or post script.</p> <p>The <code>env</code> script is a special built-in command that can be used to list environment variables that will be available to the script at runtime. If an "env" command is defined in your package it will take precedence over the built-in.</p> <p>In addition to the shell's pre-existing <code>PATH</code>, <code>npm run</code> adds <code>node_modules/.bin</code> to the <code>PATH</code> provided to scripts. Any binaries provided by locally-installed dependencies can be used without the <code>node_modules/.bin</code> prefix. For example, if there is a <code>devDependency</code> on <code>tap</code> in your package, you should write:</p> <pre><code>"scripts": {"test": "tap test/\*.js"} </code></pre><p>instead of <code>"scripts": {"test": "node_modules/.bin/tap test/\*.js"}</code> to run your tests.</p> <p><code>npm run</code> sets the <code>NODE</code> environment variable to the <code>node</code> executable with which <code>npm</code> is executed. Also, the directory within which it resides is added to the <code>PATH</code>, if the <code>node</code> executable is not in the <code>PATH</code>.</p> <p>If you try to run a script without having a <code>node_modules</code> directory and it fails, you will be given a warning to run <code>npm install</code>, just in case you've forgotten.</p> <h2 id="see-also">SEE ALSO</h2> <ul> <li><a href="../misc/npm-scripts.html">npm-scripts(7)</a></li> <li><a href="../cli/npm-test.html">npm-test(1)</a></li> <li><a href="../cli/npm-start.html">npm-start(1)</a></li> <li><a href="../cli/npm-restart.html">npm-restart(1)</a></li> <li><a href="../cli/npm-stop.html">npm-stop(1)</a></li> </ul> </div> <table border=0 cellspacing=0 cellpadding=0 id=npmlogo> <tr><td style="width:180px;height:10px;background:rgb(237,127,127)" colspan=18> </td></tr> <tr><td rowspan=4 style="width:10px;height:10px;background:rgb(237,127,127)"> </td><td style="width:40px;height:10px;background:#fff" colspan=4> </td><td style="width:10px;height:10px;background:rgb(237,127,127)" rowspan=4> </td><td style="width:40px;height:10px;background:#fff" colspan=4> </td><td rowspan=4 style="width:10px;height:10px;background:rgb(237,127,127)"> </td><td colspan=6 style="width:60px;height:10px;background:#fff"> </td><td style="width:10px;height:10px;background:rgb(237,127,127)" rowspan=4> </td></tr> <tr><td colspan=2 style="width:20px;height:30px;background:#fff" rowspan=3> </td><td style="width:10px;height:10px;background:rgb(237,127,127)" rowspan=3> </td><td style="width:10px;height:10px;background:#fff" rowspan=3> </td><td style="width:20px;height:10px;background:#fff" rowspan=4 colspan=2> </td><td style="width:10px;height:20px;background:rgb(237,127,127)" rowspan=2> </td><td style="width:10px;height:10px;background:#fff" rowspan=3> </td><td style="width:20px;height:10px;background:#fff" rowspan=3 colspan=2> </td><td style="width:10px;height:10px;background:rgb(237,127,127)" rowspan=3> </td><td style="width:10px;height:10px;background:#fff" rowspan=3> </td><td style="width:10px;height:10px;background:rgb(237,127,127)" rowspan=3> </td></tr> <tr><td style="width:10px;height:10px;background:#fff" rowspan=2> </td></tr> <tr><td style="width:10px;height:10px;background:#fff"> </td></tr> <tr><td style="width:60px;height:10px;background:rgb(237,127,127)" colspan=6> </td><td colspan=10 style="width:10px;height:10px;background:rgb(237,127,127)"> </td></tr> <tr><td colspan=5 style="width:50px;height:10px;background:#fff"> </td><td style="width:40px;height:10px;background:rgb(237,127,127)" colspan=4> </td><td style="width:90px;height:10px;background:#fff" colspan=9> </td></tr> </table> <p id="footer">npm-run-script — npm@3.10.10</p>
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