1<html> 2<head> 3<meta name="generator" content="groff -Thtml, see www.gnu.org"> 4<meta name="Content-Style" content="text/css"> 5<title>ENVSUBST</title> 6</head> 7<body> 8 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> 22<table width="100%" border=0 rules="none" frame="void" 23 cols="2" cellspacing="0" cellpadding="0"> 24<tr valign="top" align="left"> 25<td width="10%"></td><td width="90%"> 26envsubst - substitutes environment variables in shell format strings</td></table> 27<a name="SYNOPSIS"></a> 28<h2>SYNOPSIS</h2> 29 30<table width="100%" border=0 rules="none" frame="void" 31 cols="2" cellspacing="0" cellpadding="0"> 32<tr valign="top" align="left"> 33<td width="10%"></td><td width="90%"> 34<b>envsubst</b> [<i>OPTION</i>] 35[<i>SHELL-FORMAT</i>]</td></table> 36<a name="DESCRIPTION"></a> 37<h2>DESCRIPTION</h2> 38 39<table width="100%" border=0 rules="none" frame="void" 40 cols="2" cellspacing="0" cellpadding="0"> 41<tr valign="top" align="left"> 42<td width="10%"></td><td width="90%"> 43Substitutes the values of environment 44variables.</td></table> 45 46<table width="100%" border=0 rules="none" frame="void" 47 cols="2" cellspacing="0" cellpadding="0"> 48<tr valign="top" align="left"> 49<td width="4%"></td><td width="96%"> 50<b>Operation mode:</b></td></table> 51 52<table width="100%" border=0 rules="none" frame="void" 53 cols="2" cellspacing="0" cellpadding="0"> 54<tr valign="top" align="left"> 55<td width="10%"></td><td width="90%"> 56<b>-v</b>, <b>--variables</b></td></table> 57 58<table width="100%" border=0 rules="none" frame="void" 59 cols="2" cellspacing="0" cellpadding="0"> 60<tr valign="top" align="left"> 61<td width="21%"></td><td width="79%"> 62output the variables occurring in SHELL-FORMAT</td></table> 63 64<table width="100%" border=0 rules="none" frame="void" 65 cols="2" cellspacing="0" cellpadding="0"> 66<tr valign="top" align="left"> 67<td width="4%"></td><td width="96%"> 68<b>Informative output:</b></td></table> 69 70<table width="100%" border=0 rules="none" frame="void" 71 cols="2" cellspacing="0" cellpadding="0"> 72<tr valign="top" align="left"> 73<td width="10%"></td><td width="90%"> 74<b>-h</b>, <b>--help</b></td></table> 75 76<table width="100%" border=0 rules="none" frame="void" 77 cols="2" cellspacing="0" cellpadding="0"> 78<tr valign="top" align="left"> 79<td width="21%"></td><td width="79%"> 80display this help and exit</td></table> 81 82<table width="100%" border=0 rules="none" frame="void" 83 cols="2" cellspacing="0" cellpadding="0"> 84<tr valign="top" align="left"> 85<td width="10%"></td><td width="90%"> 86<b>-V</b>, <b>--version</b></td></table> 87 88<table width="100%" border=0 rules="none" frame="void" 89 cols="2" cellspacing="0" cellpadding="0"> 90<tr valign="top" align="left"> 91<td width="21%"></td><td width="79%"> 92output version information and exit</td></table> 93 94<table width="100%" border=0 rules="none" frame="void" 95 cols="2" cellspacing="0" cellpadding="0"> 96<tr valign="top" align="left"> 97<td width="10%"></td><td width="90%"> 98In normal operation mode, standard input is copied to 99standard output, with references to environment variables of 100the form $VARIABLE or ${VARIABLE} being replaced with the 101corresponding values. If a SHELL-FORMAT is given, only those 102environment variables that are referenced in SHELL-FORMAT 103are substituted; otherwise all environment variables 104references occurring in standard input are 105substituted.</td></table> 106 107<table width="100%" border=0 rules="none" frame="void" 108 cols="2" cellspacing="0" cellpadding="0"> 109<tr valign="top" align="left"> 110<td width="10%"></td><td width="90%"> 111When <b>--variables</b> is used, standard input is ignored, 112and the output consists of the environment variables that 113are referenced in SHELL-FORMAT, one per line.</td></table> 114<a name="AUTHOR"></a> 115<h2>AUTHOR</h2> 116 117<table width="100%" border=0 rules="none" frame="void" 118 cols="2" cellspacing="0" cellpadding="0"> 119<tr valign="top" align="left"> 120<td width="10%"></td><td width="90%"> 121Written by Bruno Haible.</td></table> 122<a name="REPORTING BUGS"></a> 123<h2>REPORTING BUGS</h2> 124 125<table width="100%" border=0 rules="none" frame="void" 126 cols="2" cellspacing="0" cellpadding="0"> 127<tr valign="top" align="left"> 128<td width="10%"></td><td width="90%"> 129Report bugs to <bug-gnu-gettext@gnu.org>.</td></table> 130<a name="COPYRIGHT"></a> 131<h2>COPYRIGHT</h2> 132 133<table width="100%" border=0 rules="none" frame="void" 134 cols="2" cellspacing="0" cellpadding="0"> 135<tr valign="top" align="left"> 136<td width="10%"></td><td width="90%"> 137Copyright 2003-2007 Free Software Foundation, Inc. License 138GPLv3+: GNU GPL version 3 or later 139<http://gnu.org/licenses/gpl.html>;<br> 140This is free software: you are free to change and 141redistribute it. There is NO WARRANTY, to the extent 142permitted by law.</td></table> 143<a name="SEE ALSO"></a> 144<h2>SEE ALSO</h2> 145 146<table width="100%" border=0 rules="none" frame="void" 147 cols="2" cellspacing="0" cellpadding="0"> 148<tr valign="top" align="left"> 149<td width="10%"></td><td width="90%"> 150The full documentation for <b>envsubst</b> is maintained as 151a Texinfo manual. If the <b>info</b> and <b>envsubst</b> 152programs are properly installed at your site, the 153command</td></table> 154 155<table width="100%" border=0 rules="none" frame="void" 156 cols="2" cellspacing="0" cellpadding="0"> 157<tr valign="top" align="left"> 158<td width="21%"></td><td width="79%"> 159<b>info envsubst</b></td></table> 160 161<table width="100%" border=0 rules="none" frame="void" 162 cols="2" cellspacing="0" cellpadding="0"> 163<tr valign="top" align="left"> 164<td width="10%"></td><td width="90%"> 165should give you access to the complete manual.</td></table> 166<hr> 167</body> 168</html> 169