ENVSUBST - phpMan

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 refer-
       ences 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  envi-
       ronment 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 AT gnu.org>.

COPYRIGHT
       Copyright © 2003-2005 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.   There  is  NO  war-
       ranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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.



GNU gettext-runtime 0.14.3        March 2005                       ENVSUBST(1)

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