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<h1 align=center>ENVSUBST</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#AUTHOR">AUTHOR</a><br>
<a href="#REPORTING BUGS">REPORTING BUGS</a><br>
<a href="#COPYRIGHT">COPYRIGHT</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
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<a name="NAME"></a>
<h2>NAME</h2>
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envsubst - substitutes environment variables in shell format strings</td></table>
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<h2>SYNOPSIS</h2>
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<b>envsubst</b> [<i>OPTION</i>]
[<i>SHELL-FORMAT</i>]</td></table>
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<h2>DESCRIPTION</h2>
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Substitutes the values of environment
variables.</td></table>
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<b>Operation mode:</b></td></table>
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<b>-v</b>, <b>--variables</b></td></table>
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output the variables occurring in SHELL-FORMAT</td></table>
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<b>Informative output:</b></td></table>
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<b>-h</b>, <b>--help</b></td></table>
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display this help and exit</td></table>
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<b>-V</b>, <b>--version</b></td></table>
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output version information and exit</td></table>
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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.</td></table>
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When <b>--variables</b> is used, standard input is ignored,
and the output consists of the environment variables that
are referenced in SHELL-FORMAT, one per line.</td></table>
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<h2>AUTHOR</h2>
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Written by Bruno Haible.</td></table>
<a name="REPORTING BUGS"></a>
<h2>REPORTING BUGS</h2>
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Report bugs to <bug-gnu-gettext@gnu.org>.</td></table>
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<h2>COPYRIGHT</h2>
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Copyright 2003-2007 Free Software Foundation, Inc. License
GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html><br>
This is free software: you are free to change and
redistribute it. There is NO WARRANTY, to the extent
permitted by law.</td></table>
<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
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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</td></table>
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<b>info envsubst</b></td></table>
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should give you access to the complete manual.</td></table>
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