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Merge pull request #1242 from thakkaryash94/patch-1 

Add ARG syntax in dockerfile.md
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Rico Sta. Cruz 2019-12-24 22:07:01 +11:00 committed by GitHub
parent 6f0d6e5160 5c0d96cbf4
commit 743ac3ab20
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dockerfile.md
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@ -22,6 +22,11 @@ ENV APP_HOME /myapp
RUN mkdir $APP_HOME
```
```docker
ARG APP_HOME=""
RUN mkdir $APP_HOME
```
### Initialization
```docker