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Fix error for env variables example in docker reference
Signed-off-by: Charles Law <claw@conduce.com>
Charles Law authored on 2016/05/14 02:55:36Showing 1 changed files
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@@ -361,7 +361,7 @@ RUN /bin/bash -c 'source $HOME/.bashrc ; echo $HOME' |
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> This means that normal shell processing does not happen. For example, |
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> `RUN [ "echo", "$HOME" ]` will not do variable substitution on `$HOME`. |
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> If you want shell processing then either use the *shell* form or execute |
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-> a shell directly, for example: `RUN [ "sh", "-c", "echo", "$HOME" ]`. |
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+> a shell directly, for example: `RUN [ "sh", "-c", "echo $HOME" ]`. |
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The cache for `RUN` instructions isn't invalidated automatically during |
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the next build. The cache for an instruction like |