ENVSUBST
Section: GNU (1)Updated: November 2007
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NAME
envsubst - substitutes environment variables in shell format stringsSYNOPSIS
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
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Time: 05:29:03 GMT, December 24, 2015