hunk.code_window: with the `exp` cli. The binary produced will only pull releases published under the specified channel. If you do not specify a channel, your binary will pull releases from the `default` channel.
   ## Get Channels
   You can access the channel your release is published under with the `releaseChannel` field in the [manifest object] (https://docs.expo.io/versions/latest/sdk/constants.html#expoconstantsmanifest).
  
hunk.labels: keep keep keep replace keep keep keep
hunk.after_edit: ## Access Channel from Code
  
hunk.file_path: docs/versions/unversioned/guides/release-channels.md
hunk.type: replace
file: #!/bin/bash
  
  set -e
  
  DIR=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
  
  PACKAGE_VERSION=v$(cat package.json \
    | grep version \
    | head -1 \
    | awk -F: '{ print $2 }' \
    | sed 's/[",]//g' \
    | tr -d '[[:space:]]')
  
  $DIR/set-docker-loopback
  rocker build . --var DocsVersion=$PACKAGE_VERSION
  docker run -p 9000:80 gcr.io/exponentjs/docs-nginx-dev:$PACKAGE_VERSION
  