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

Related Articles:

• 2010/09/04   Remove some path from the PATH variable temporarily.
• 2010/06/21   concatenate compressed and uncompressed logs
• 2010/03/04   Bash histoy – common history in different terminals
• 2015/06/29   Easily monitor and archive your system log reports.
• 2015/04/30   tracer – trace outdated files on your system