go get github.com/yuuuuwwww/env-handler
go install github.com/yuuuuwwww/env-handler

If you have .env file:

env-handler gen-sample

You also can specify filename:

env-handler gen-sample -e "different-filename.env"

You can add a new environment variable, e.g., key=value:

env-handler add key value

appending new line key=value to .env and .env.sample.

You also can specify filename.

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