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15 <title>ENVSUBST</title>
20 <h1 align="center">ENVSUBST</h1>
22 <a href="#NAME">NAME</a><br>
23 <a href="#SYNOPSIS">SYNOPSIS</a><br>
24 <a href="#DESCRIPTION">DESCRIPTION</a><br>
25 <a href="#AUTHOR">AUTHOR</a><br>
26 <a href="#REPORTING BUGS">REPORTING BUGS</a><br>
27 <a href="#COPYRIGHT">COPYRIGHT</a><br>
28 <a href="#SEE ALSO">SEE ALSO</a><br>
38 <p style="margin-left:11%; margin-top: 1em">envsubst
39 − substitutes environment variables in shell format
43 <a name="SYNOPSIS"></a>
48 <p style="margin-left:11%; margin-top: 1em"><b>envsubst</b>
49 [<i>OPTION</i>] [<i>SHELL-FORMAT</i>]</p>
52 <a name="DESCRIPTION"></a>
56 <p style="margin-left:11%; margin-top: 1em">Substitutes the
57 values of environment variables.</p>
59 <p style="margin-left:11%; margin-top: 1em"><b>Operation
61 −v</b>, <b>−−variables</b></p>
63 <p style="margin-left:22%;">output the variables occurring
66 <p style="margin-left:11%; margin-top: 1em"><b>Informative
68 −h</b>, <b>−−help</b></p>
70 <p style="margin-left:22%;">display this help and exit</p>
72 <p style="margin-left:11%;"><b>−V</b>,
73 <b>−−version</b></p>
75 <p style="margin-left:22%;">output version information and
78 <p style="margin-left:11%; margin-top: 1em">In normal
79 operation mode, standard input is copied to standard output,
80 with references to environment variables of the form
81 $VARIABLE or ${VARIABLE} being replaced with the
82 corresponding values. If a SHELL-FORMAT is given, only those
83 environment variables that are referenced in SHELL-FORMAT
84 are substituted; otherwise all environment variables
85 references occurring in standard input are substituted.</p>
87 <p style="margin-left:11%; margin-top: 1em">When
88 <b>−−variables</b> is used, standard input is
89 ignored, and the output consists of the environment
90 variables that are referenced in SHELL-FORMAT, one per
98 <p style="margin-left:11%; margin-top: 1em">Written by
102 <a name="REPORTING BUGS"></a>
106 <p style="margin-left:11%; margin-top: 1em">Report bugs to
107 <bug-gnu-gettext@gnu.org>.</p>
110 <a name="COPYRIGHT"></a>
114 <p style="margin-left:11%; margin-top: 1em">Copyright
115 © 2003-2007 Free Software Foundation, Inc. License
116 GPLv3+: GNU GPL version 3 or later
117 <http://gnu.org/licenses/gpl.html> <br>
118 This is free software: you are free to change and
119 redistribute it. There is NO WARRANTY, to the extent
120 permitted by law.</p>
123 <a name="SEE ALSO"></a>
127 <p style="margin-left:11%; margin-top: 1em">The full
128 documentation for <b>envsubst</b> is maintained as a Texinfo
129 manual. If the <b>info</b> and <b>envsubst</b> programs are
130 properly installed at your site, the command</p>
132 <p style="margin-left:22%; margin-top: 1em"><b>info
135 <p style="margin-left:11%; margin-top: 1em">should give you
136 access to the complete manual.</p>