Update WORKDIR command information

Signed-off-by: Govind Rai <raigovind93@gmail.com>
thaJeztah · Jun 16, 2021 · e12aade · e12aade
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commit e12aade
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diff --git a/docs/reference/builder.md b/docs/reference/builder.md
@@ -1822,6 +1822,11 @@ RUN pwd
 The output of the final `pwd` command in this `Dockerfile` would be
 `/path/$DIRNAME`
 
+If not specified, the default working directory is `/`. In practice, if you aren't building a Dockerfile from scratch (`FROM scratch`), 
+the `WORKDIR` may likely be set by the base image you're using.
+
+Therefore, to avoid unintended operations in unknown directories, it is best practice to set your `WORKDIR` explicitly.
+
 ## ARG
 
 ```dockerfile