NAME | SYNOPSIS | DESCRIPTION | AUTHOR | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON

ENVSUBST(1)                          GNU                         ENVSUBST(1)

NAME         top

       envsubst - substitutes environment variables in shell format strings

SYNOPSIS         top

       envsubst [OPTION] [SHELL-FORMAT]

DESCRIPTION         top

       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         top

       Written by Bruno Haible.

REPORTING BUGS         top

       Report bugs to <bug-gnu-gettext@gnu.org>.

COPYRIGHT         top

       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         top

       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.

COLOPHON         top

       This page is part of the gettext (message translation) project.
       Information about the project can be found at 
       ⟨http://www.gnu.org/software/gettext/⟩.  If you have a bug report for
       this manual page, see ⟨http://savannah.gnu.org/projects/gettext/⟩.
       This page was obtained from the project's upstream Git repository 
       ⟨git://git.savannah.gnu.org/gettext.git⟩ on 2017-09-15.  If you dis‐
       cover any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail
       to man-pages@man7.org

GNU gettext-runtime 0.19.8.1.6-c776J4u6ly 2016                      ENVSUBST(1)