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<!--
Copyright (c) 1991 - 1993, Julianne Frances Haugh
Copyright (c) 1991 - 1993, Chip Rosenthal
Copyright (c) 2007 - 2008, Nicolas François
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-->
<varlistentry>
<!-- XXX: When compiled with PAM support, only sulogin uses ENV_HZ -->
<term><option>ENV_HZ</option> (string)</term>
<listitem>
<para>
If set, it will be used to define the HZ environment variable when
a user login. The value must be preceded by
<replaceable>HZ=</replaceable>. A common value on Linux is
<replaceable>HZ=100</replaceable>.
</para>
<para condition="pam">
The <envar>HZ</envar> environment variable is only set when the user
(the superuser) logs in with <command>sulogin</command>.
</para>
<!-- TODO: it can in fact be used to set any other variable-->
</listitem>
</varlistentry>
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