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Updated: Wednesday, February 10, 2021
 
 

envsubst (1)

Name

envsubst - substitutes environment variables in shell format strings

Synopsis

envsubst [OPTION] [SHELL-FORMAT]

Description

ENVSUBST(1)                           GNU                          ENVSUBST(1)



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-FOR-
       MAT, one per line.

AUTHOR
       Written by Bruno Haible.

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

COPYRIGHT
       Copyright (C) 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.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | text/gnu-gettext |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
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.



NOTES
       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source  was   downloaded   from    https://ftp.gnu.org/gnu/gettext/get-
       text-0.19.8.tar.xz

       Further information about this software can be found on the open source
       community website at https://www.gnu.org/software/gettext.



GNU gettext-runtime 0.19.8
                                   June 2016                       ENVSUBST(1)