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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `mkdir` fn in crate `nix`."><meta name="keywords" content="rust, rustlang, rust-lang, mkdir"><title>nix::unistd::mkdir - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc fn"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../nix/index.html'><div class='logo-container'><img src='../../rust-logo.png' alt='logo'></div></a><div class="sidebar-elems"><p class='location'><a href='../index.html'>nix</a>::<wbr><a href='index.html'>unistd</a></p><script>window.sidebarCurrent = {name: 'mkdir', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/nix/unistd.rs.html#458-464' title='goto source code'>[src]</a></span><span class='in-band'>Function <a href='../index.html'>nix</a>::<wbr><a href='index.html'>unistd</a>::<wbr><a class="fn" href=''>mkdir</a></span></h1><pre class='rust fn'>pub fn mkdir<P: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="../../nix/trait.NixPath.html" title="trait nix::NixPath">NixPath</a>>(path: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>P, mode: <a class="struct" href="../../nix/sys/stat/struct.Mode.html" title="struct nix::sys::stat::Mode">Mode</a>) -> <a class="type" href="../../nix/type.Result.html" title="type nix::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></pre><div class='docblock'><p>Creates new directory <code>path</code> with access rights <code>mode</code>. (see <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/mkdir.html">mkdir(2)</a>)</p>
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<h1 id="errors" class="section-header"><a href="#errors">Errors</a></h1>
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<p>There are several situations where mkdir might fail:</p>
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<ul>
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<li>current user has insufficient rights in the parent directory</li>
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<li>the path already exists</li>
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<li>the path name is too long (longer than <code>PATH_MAX</code>, usually 4096 on linux, 1024 on OS X)</li>
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</ul>
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<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">tempfile</span>;
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<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">nix</span>;
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<span class="kw">use</span> <span class="ident">nix</span>::<span class="ident">unistd</span>;
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<span class="kw">use</span> <span class="ident">nix</span>::<span class="ident">sys</span>::<span class="ident">stat</span>;
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<span class="kw">use</span> <span class="ident">tempfile</span>::<span class="ident">tempdir</span>;
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<span class="kw">fn</span> <span class="ident">main</span>() {
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<span class="kw">let</span> <span class="ident">tmp_dir1</span> <span class="op">=</span> <span class="ident">tempdir</span>().<span class="ident">unwrap</span>();
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<span class="kw">let</span> <span class="ident">tmp_dir2</span> <span class="op">=</span> <span class="ident">tmp_dir1</span>.<span class="ident">path</span>().<span class="ident">join</span>(<span class="string">"new_dir"</span>);
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<span class="comment">// create new directory and give read, write and execute rights to the owner</span>
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<span class="kw">match</span> <span class="ident">unistd</span>::<span class="ident">mkdir</span>(<span class="kw-2">&</span><span class="ident">tmp_dir2</span>, <span class="ident">stat</span>::<span class="ident">Mode</span>::<span class="ident">S_IRWXU</span>) {
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<span class="prelude-val">Ok</span>(<span class="kw">_</span>) <span class="op">=</span><span class="op">></span> <span class="macro">println</span><span class="macro">!</span>(<span class="string">"created {:?}"</span>, <span class="ident">tmp_dir2</span>),
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<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=</span><span class="op">></span> <span class="macro">println</span><span class="macro">!</span>(<span class="string">"Error creating directory: {}"</span>, <span class="ident">err</span>),
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}
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}</pre></div>
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