Install Hadolint (Latest Release)

install-hadolint.sh

#!/usr/bin/env sh

## URL for the latest release:
_latest="https://api.github.com/repos/hadolint/hadolint/releases/latest"

## Kernel name:
_kernel="$(uname -s)"

## Architecture:
_arch="$(uname -m)"

## Target:
_target="${1:-/usr/local/bin/hadolint}"

## Download the binary to target path:
curl -s "${_latest}"           | \
    grep browser_download_url  | \
    grep "${_kernel}-${_arch}" | \
    cut -f 2- -d ":"           | \
    tr -d "\""                 | \
    wget -qi - -O "${_target}"

## Attend permissions:
chmod +x "${_target}"

Install to the default target path (/usr/local/bin/hadolint):

curl -sf -L https://gist.githubusercontent.com/vst/90e849a1d2249d4a713b98dcc53db637/raw/install-hadolint.sh | sudo sh

Install to custom target path:

curl -sf -L https://gist.githubusercontent.com/vst/90e849a1d2249d4a713b98dcc53db637/raw/install-hadolint.sh | sudo sh -s /tmp/hadolint