Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
ENVSUBST(1)			 User Commands			   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	refer-
       enced  in SHELL-FORMAT are substituted; otherwise all environment vari-
       ables 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	 in    the    bug    tracker	at     <https://savan-
       nah.gnu.org/projects/gettext> or	by email to <bug-gettext@gnu.org>.

COPYRIGHT
       Copyright (C) 2003-2020 Free Software Foundation, Inc.  License GPLv3+:
       GNU GPL version 3 or later <https://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.

GNU gettext-runtime 20200704	   July	2020			   ENVSUBST(1)

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

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=envsubst&sektion=1&manpath=FreeBSD+12.2-RELEASE+and+Ports>

home | help