Question 85049 in Docker Question posted in
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Docker pass variable without it getting expanded

I want to run echo "tools path is: $TOOLSPATH" in my docker image but make sure the variable doesn’t get expanded in my machine and sent to docker. I am not sure how to avoid variable expansion.

docker run -v `pwd`:/root -it --rm foobar echo 'tools path is: $TOOLSPATH'
> tools path is: $TOOLSPATH

docker run -v `pwd`:/root -it --rm foobar echo "tools path is: $TOOLSPATH"
> tools path is:
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2

Answers


  1. 0

    There is one way to run echo $VAR inside the container and print it in your terminal. You just need to pass an interpreter too.

    docker run alpine sh -c 'echo my HOME: $HOME'
my HOME: /root

    PS: I used alpine as a test. If sh doesn’t work, you can try bash instead.

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  2. 0

    This might be helpful to you

    docker run -v `pwd`:/root -it --rm foobar echo "tools path is: $TOOLSPATH"
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