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<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="man.genrandom">
  <info>
    <date>2011-08-08</date>
  </info>
  <refentryinfo>
    <corpname>ISC</corpname>
    <corpauthor>Internet Systems Consortium, Inc.</corpauthor>
  </refentryinfo>

  <refmeta>
    <refentrytitle><application>genrandom</application></refentrytitle>
    <manvolnum>8</manvolnum>
    <refmiscinfo>BIND9</refmiscinfo>
  </refmeta>

  <refnamediv>
    <refname><application>genrandom</application></refname>
    <refpurpose>generate a file containing random data</refpurpose>
  </refnamediv>

  <docinfo>
    <copyright>
      <year>2009</year>
      <year>2010</year>
      <year>2011</year>
      <year>2014</year>
      <year>2015</year>
      <year>2016</year>
      <year>2018</year>
      <year>2019</year>
      <year>2020</year>
      <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
    </copyright>
  </docinfo>

  <refsynopsisdiv>
    <cmdsynopsis sepchar=" ">
      <command>genrandom</command>
      <arg choice="opt" rep="norepeat"><option>-n <replaceable class="parameter">number</replaceable></option></arg>
      <arg choice="req" rep="norepeat"><replaceable class="parameter">size</replaceable></arg>
      <arg choice="req" rep="norepeat"><replaceable class="parameter">filename</replaceable></arg>
    </cmdsynopsis>
  </refsynopsisdiv>

  <refsection><info><title>DESCRIPTION</title></info>

    <para>
      <command>genrandom</command>
      generates a file or a set of files containing a specified quantity
      of pseudo-random data, which can be used as a source of entropy for
      other commands on systems with no random device.
    </para>
  </refsection>

  <refsection><info><title>ARGUMENTS</title></info>

    <variablelist>
      <varlistentry>
        <term>-n <replaceable class="parameter">number</replaceable></term>
        <listitem>
          <para>
            In place of generating one file, generates <option>number</option>
            (from 2 to 9) files, appending <option>number</option> to the name.
          </para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term>size</term>
        <listitem>
          <para>
            The size of the file, in kilobytes, to generate.
          </para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term>filename</term>
        <listitem>
          <para>
            The file name into which random data should be written.
          </para>
        </listitem>
      </varlistentry>
    </variablelist>
  </refsection>

  <refsection><info><title>SEE ALSO</title></info>

    <para>
      <citerefentry>
        <refentrytitle>rand</refentrytitle><manvolnum>3</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>arc4random</refentrytitle><manvolnum>3</manvolnum>
      </citerefentry>
    </para>
  </refsection>

</refentry>