Regarding not getting GNU awk version after creating a docker basic container

I am trying to create a normal docker‘s container, where I want to run my awk script. So we came to know we have to install GNU awk in it too, so could you please let me know if there any way we could get it in container itself(which creating os image) rather than installing it separately.

I apologies if I missed something here as I am new to this technology.

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