Envsubst: Difference between revisions
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<tt>envsubst</tt> performs [[Bash_Variables#Variable_Expansion_in_an_Arbitrary_File|environment variable expansion]] in shell-format strings in arbitrary files. No other shell [[Bash Command Line Expansion#Overview|command line expansions]] will be. performed. | <tt>envsubst</tt> performs [[Bash_Variables#Variable_Expansion_in_an_Arbitrary_File|environment variable expansion]] in shell-format strings in arbitrary files. No other shell [[Bash Command Line Expansion#Overview|command line expansions]] will be. performed. | ||
If a variable is declared but not found in the environment, it will be replaced with the empty string. | |||
=Installation= | =Installation= | ||
Revision as of 17:21, 5 May 2018
Internal
Overview
envsubst performs environment variable expansion in shell-format strings in arbitrary files. No other shell command line expansions will be. performed.
If a variable is declared but not found in the environment, it will be replaced with the empty string.
Installation
Mac
brew install gettext
then modify .bashrc:
export PATH=/usr/local/opt/gettext/bin:${PATH}