From b16f3736edf2427761cbc1c8fc5c4892299b2232 Mon Sep 17 00:00:00 2001 From: Huu Nguyen Date: Thu, 30 Oct 2014 22:50:02 -0400 Subject: [PATCH] Fix apparent copy paste mistake The note under the RUN header refers to the CMD instruction. It should refer to the RUN instruction instead. Signed-off-by: Huu Nguyen --- docs/sources/reference/builder.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/sources/reference/builder.md b/docs/sources/reference/builder.md index ae0771d685..a76e6b88f7 100644 --- a/docs/sources/reference/builder.md +++ b/docs/sources/reference/builder.md @@ -238,9 +238,9 @@ commands using a base image that does not contain `/bin/sh`. > **Note**: > Unlike the *shell* form, the *exec* form does not invoke a command shell. > This means that normal shell processing does not happen. For example, -> `CMD [ "echo", "$HOME" ]` will not do variable substitution on `$HOME`. +> `RUN [ "echo", "$HOME" ]` will not do variable substitution on `$HOME`. > If you want shell processing then either use the *shell* form or execute -> a shell directly, for example: `CMD [ "sh", "-c", "echo", "$HOME" ]`. +> a shell directly, for example: `RUN [ "sh", "-c", "echo", "$HOME" ]`. The cache for `RUN` instructions isn't invalidated automatically during the next build. The cache for an instruction like