evvsubst – substitute variables in text in shell

2015-07-09 1 min read Fedora Linux

First you need to install gettext, which by the way might be already installed, however you can install with

dnf install gettext

Details of the package:

Name        : gettext
Arch        : x86_64
Epoch       : 0
Version     : 0.19.4
Release     : 4.fc22
Size        : 4.6 M
Repo        : @System
Summary     : GNU libraries and utilities for producing multi-lingual messages
URL         : http://www.gnu.org/software/gettext/
License     : GPLv3+ and LGPLv2+
Description : The GNU gettext package provides a set of tools and documentation for
producing multi-lingual messages in programs. Tools include a set of
conventions about how programs should be written to support message
catalogs, a directory and file naming organization for the message
catalogs, a runtime library which supports the retrieval of translated
messages, and stand-alone programs for handling the translatable and
the already translated strings. Gettext provides an easy to use
library and tools for creating, using, and modifying natural language
catalogs and is a powerful and simple method for internationalizing
programs.

Usage examples:

cat file |envsubst
# substitute variables and copy to clipboard
cat file |envsubst |xclip -i
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