envsubst
Substitutes shell format strings with environment variables in text. Strings to be replaced should be in either `${var}` or `$var` format.
Install
- All systems
-
curl cmd.cat/envsubst.sh
- Debian
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apt-get install gettext-base
- Ubuntu
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apt-get install gettext-base
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Alpine
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apk add gettext
- Arch Linux
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pacman -S gettext
- Kali Linux
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apt-get install gettext-base
- CentOS
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yum install gettext
- Fedora
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dnf install gettext
- OS X
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brew install gettext
- Raspbian
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apt-get install gettext-base
- Docker
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docker run cmd.cat/envsubst envsubst
powered by Commando
Substitutes shell format strings with environment variables in text. Strings to be replaced should be in either `${var}` or `$var` format.
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Replace environment variables in stdin and output to stdout:
echo '$HOME' | envsubst
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Replace environment variables in an input file and output to stdout:
envsubst < path/to/input
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Replace environment variables in an input file and output to a file:
envsubst < path/to/input > path/to/output
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Replace environment variables in input from a space-separated list:
envsubst variables < path/to/input
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