107 lines
2.8 KiB
HTML
107 lines
2.8 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<html>
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<head>
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<meta name="generator" content="HTML Tidy, see www.w3.org">
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<meta http-equiv="Content-Type" content=
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"text/html; charset=utf-8">
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<title>mkfifo - Make FIFO special files</title>
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<LINK rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</HEAD>
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<body bgcolor="#FFFFFF">
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<!-- Java sync-link -->
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<SCRIPT LANGUAGE="Javascript" SRC="../rzahg/synch.js" TYPE="text/javascript"></SCRIPT>
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<p></p>
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<h2>mkfifo - Make FIFO special files</h2>
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<p><strong>Synopsis</strong></p>
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<p><strong>mkfifo [-p] [-m</strong> <em>mode</em><strong>]</strong>
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<em>file ...</em></p>
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<p><strong>Description</strong></p>
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<p>The <strong>mkfifo</strong> utility creates the FIFO special files named
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as operands, in the order specified, using a default mode that
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allows read and write permission for the owner, group, and others (0666) as
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modified by the current file creation mask.</p>
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<p>The user must have write permission in the parent directory.</p>
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<p><strong>Options</strong></p>
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<dl>
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<dt><strong>-m</strong> <em>mode</em></dt>
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<dd>Set the file permission bits of the FIFO special file to
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the specified <em>mode</em>. The mode argument can be in any of the
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formats supported by the <a href="chmod.htm">chmod</a> command. If
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a symbolic mode is specified, the operation characters + and - are
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interpreted relative to an initial mode of "a=rw".</dd>
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<dt><strong>-p</strong></dt>
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<dd>Create intermediate directories as required. If this option is
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not specified, the full path prefix of each <em>file</em> must already
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exist. Intermediate directories are created with a default mode that allows
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read, write, and search permission for the owner, group, and others (0777)
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as modified by the current file creation mask.</dd>
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</dl>
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<p><strong>Operands</strong></p>
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<p>Each <em>file</em> is the path name of FIFO special file.</p>
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<p><strong>Exit Status</strong></p>
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<ul>
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<li>0 if successful</li>
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<li>>0 if an error occurred.</li>
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</ul>
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<p><strong>Related information</strong></p>
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<ul>
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<li><a href="chmod.htm">chmod - Change file modes
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(permissions)</a></li>
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<li><a href="mkdir.htm">mkdir - Make directories</a></li>
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<li><a href="umask.htm">umask - Get or set the file mode creation
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mask</a></li>
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</ul>
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<strong>Examples</strong>
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<ol>
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<li>Create the FIFO special files "fifo1" and "fifo1":
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<pre>
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mkfifo fifo1 fifo2
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</pre></li>
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<li>Create the the FIFO special file "fifo1" and set the
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permissons to read, write and execute for the owner:
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<pre>
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mkfifo -m 700 myfifo
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</pre></li>
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<li>Create the the FIFO special file "/dir1/dir2/fifo1" and each
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directory in the path that does not exist:
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<pre>
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mkfifo -p /dir1/dir2/fifo1
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</pre></li>
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</ol>
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<p></p>
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<!-- end ibmbody========================================================= -->
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</body>
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</html>
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