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<h1 align="center">ENVSUBST</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#AUTHOR">AUTHOR</a><br>
<a href="#COPYRIGHT">COPYRIGHT</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<a name="NAME"></a>
<p style="margin-left:11%; margin-top: 1em">envsubst
&minus; substitutes environment variables in shell format
<a name="SYNOPSIS"></a>
<p style="margin-left:11%; margin-top: 1em"><b>envsubst</b>
[<i>OPTION</i>] [<i>SHELL-FORMAT</i>]</p>
<a name="DESCRIPTION"></a>
<p style="margin-left:11%; margin-top: 1em">Substitutes the
values of environment variables.</p>
<p style="margin-left:11%; margin-top: 1em"><b>Operation
mode: <br>
&minus;v</b>, <b>&minus;&minus;variables</b></p>
<p style="margin-left:22%;">output the variables occurring
<p style="margin-left:11%; margin-top: 1em"><b>Informative
output: <br>
&minus;h</b>, <b>&minus;&minus;help</b></p>
<p style="margin-left:22%;">display this help and exit</p>
<p style="margin-left:11%;"><b>&minus;V</b>,
<p style="margin-left:22%;">output version information and
<p style="margin-left:11%; margin-top: 1em">In normal
operation mode, standard input is copied to standard output,
with references to environment variables of the form
$VARIABLE or ${VARIABLE} being replaced with the
corresponding values. If a SHELL-FORMAT is given, only those
environment variables that are referenced in SHELL-FORMAT
are substituted; otherwise all environment variables
references occurring in standard input are substituted.</p>
<p style="margin-left:11%; margin-top: 1em">When
<b>&minus;&minus;variables</b> is used, standard input is
ignored, and the output consists of the environment
variables that are referenced in SHELL-FORMAT, one per
<a name="AUTHOR"></a>
<p style="margin-left:11%; margin-top: 1em">Written by
Bruno Haible.</p>
<a name="REPORTING BUGS"></a>
<p style="margin-left:11%; margin-top: 1em">Report bugs to
<a name="COPYRIGHT"></a>
<p style="margin-left:11%; margin-top: 1em">Copyright
&copy; 2003-2007 Free Software Foundation, Inc. License
GPLv3+: GNU GPL version 3 or later
&lt;; <br>
This is free software: you are free to change and
redistribute it. There is NO WARRANTY, to the extent
permitted by law.</p>
<a name="SEE ALSO"></a>
<p style="margin-left:11%; margin-top: 1em">The full
documentation for <b>envsubst</b> is maintained as a Texinfo
manual. If the <b>info</b> and <b>envsubst</b> programs are
properly installed at your site, the command</p>
<p style="margin-left:22%; margin-top: 1em"><b>info
<p style="margin-left:11%; margin-top: 1em">should give you
access to the complete manual.</p>