gnu/dist/gettext/gettext-runtime/man/envsubst.1.html

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   9 <h1 align=center>ENVSUBST</h1>
  10 <a href="#NAME">NAME</a><br>
  11 <a href="#SYNOPSIS">SYNOPSIS</a><br>
  12 <a href="#DESCRIPTION">DESCRIPTION</a><br>
  13 <a href="#AUTHOR">AUTHOR</a><br>
  14 <a href="#REPORTING BUGS">REPORTING BUGS</a><br>
  15 <a href="#COPYRIGHT">COPYRIGHT</a><br>
  16 <a href="#SEE ALSO">SEE ALSO</a><br>
  17
  18 <hr>
  19 <!-- Creator     : groff version 1.17.2 -->
  20 <a name="NAME"></a>
  21 <h2>NAME</h2>
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  26 envsubst - substitutes environment variables in shell format strings</td></table>
  27 <a name="SYNOPSIS"></a>
  28 <h2>SYNOPSIS</h2>
  29
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  34 <b>envsubst</b> [<i>OPTION</i>]
  35 [<i>SHELL-FORMAT</i>]</td></table>
  36 <a name="DESCRIPTION"></a>
  37 <h2>DESCRIPTION</h2>
  38
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  43 Substitutes the values of environment
  44 variables.</td></table>
  45
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  50 <b>Operation mode:</b></td></table>
  51
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  56 <b>-v</b>, <b>--variables</b></td></table>
  57
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  62 output the variables occurring in SHELL-FORMAT</td></table>
  63
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  68 <b>Informative output:</b></td></table>
  69
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  74 <b>-h</b>, <b>--help</b></td></table>
  75
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  80 display this help and exit</td></table>
  81
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  86 <b>-V</b>, <b>--version</b></td></table>
  87
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  92 output version information and exit</td></table>
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  98 In normal operation mode, standard input is copied to
  99 standard output, with references to environment variables of
 100 the form $VARIABLE or ${VARIABLE} being replaced with the
 101 corresponding values. If a SHELL-FORMAT is given, only those
 102 environment variables that are referenced in SHELL-FORMAT
 103 are substituted; otherwise all environment variables
 104 references occurring in standard input are
 105 substituted.</td></table>
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 111 When <b>--variables</b> is used, standard input is ignored,
 112 and the output consists of the environment variables that
 113 are referenced in SHELL-FORMAT, one per line.</td></table>
 114 <a name="AUTHOR"></a>
 115 <h2>AUTHOR</h2>
 116
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 121 Written by Bruno Haible.</td></table>
 122 <a name="REPORTING BUGS"></a>
 123 <h2>REPORTING BUGS</h2>
 124
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 129 Report bugs to &lt;bug-gnu-gettext@gnu.org&gt;.</td></table>
 130 <a name="COPYRIGHT"></a>
 131 <h2>COPYRIGHT</h2>
 132
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 137 Copyright 2003-2005 Free Software Foundation, Inc.<br>
 138 This is free software; see the source for copying
 139 conditions. There is NO warranty; not even for
 140 MERCHANTABILITY or FITNESS FOR A PARTICULAR
 141 PURPOSE.</td></table>
 142 <a name="SEE ALSO"></a>
 143 <h2>SEE ALSO</h2>
 144
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 149 The full documentation for <b>envsubst</b> is maintained as
 150 a Texinfo manual. If the <b>info</b> and <b>envsubst</b>
 151 programs are properly installed at your site, the
 152 command</td></table>
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 158 <b>info envsubst</b></td></table>
 159
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 164 should give you access to the complete manual.</td></table>
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