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April, 26th. 2006:
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ENVSUBST
Section: GNU (1) Updated: June 2016 Index
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NAME
envsubst - substitutes environment variables in shell format strings
SYNOPSIS
envsubst
[ OPTION] [ SHELL-FORMAT]
DESCRIPTION
Substitutes the values of environment variables.
Operation mode:
- -v, --variables
-
output the variables occurring in SHELL-FORMAT
Informative output:
- -h, --help
-
display this help and exit
- -V, --version
-
output version information and exit
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.
When --variables is used, standard input is ignored, and the output consists
of the environment variables that are referenced in SHELL-FORMAT, one per line.
AUTHOR
Written by Bruno Haible.
REPORTING BUGS
Report bugs to < bug-gnu-gettext@gnu.org>.
COPYRIGHT
Copyright © 2003-2007 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later < http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for
envsubst
is maintained as a Texinfo manual. If the
info
and
envsubst
programs are properly installed at your site, the command
-
info envsubst
should give you access to the complete manual.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- Operation mode:
-
- Informative output:
-
- AUTHOR
-
- REPORTING BUGS
-
- COPYRIGHT
-
- SEE ALSO
-
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