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readme.md

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+# Hello World in Docker
+
+## Bash
+```bash
+docker buildx build -t hello-world-bash -f Dockerfile.bash .
+docker run --rm --name "helloWorldBash" hello-world-bash 
+```
+
+## Python
+```bash
+docker buildx build -t hello-world-python -f Dockerfile.python .
+docker run --rm -it --name "helloWorldPython" hello-world-python
+```
+
+## Python in Alpine
+```bash
+docker buildx build -t hello-world-python-alpine -f Dockerfile.python-alpine .
+docker run --rm -it --name "helloWorldPythonAlpine" hello-world-python-alpine
+```
+
+# Let's see how much space each image takes up
+```bash
+docker images
+```
+
+```bash
+REPOSITORY                   TAG       IMAGE ID       CREATED          SIZE
+hello-world-bash             latest    7fab71e07670   21 seconds ago   101MB
+hello-world-python-alpine    latest    e42435db8b4a   30 minutes ago   53.4MB
+hello-world-python           latest    9fe43bb44dca   47 minutes ago   1GB
+```