Download latest release of Balena Cli and Gui from github - Linux

DownloadLastBalenaCli.sh

sudo apt install wget curl unzip

# Get latest version url
curl -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/balena-io/balena-cli/releases/latest | grep '"browser_download_url":' | sed -E 's/.*"([^"]+)".*/\1/' | grep 'linux' > balenaCliLink.txt

# Set first line of a file, that contains a url, to a variable
read -r url < balenaCliLink.txt

# Delete from disk, if already downloaded
rm -f ${url##*/}

# Download it
wget $url

# Delete extraction folder from disk, if already downloaded
rm -rf -d balena-cli

# Decompress
unzip -q ${url##*/}

# Delete temporary from disk
rm -f balenaCliLink.txt

# Get latest version url
curl -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/balena-io/etcher/releases/latest | grep '"browser_download_url":' | sed -E 's/.*"([^"]+)".*/\1/' | grep 'x64.AppImage' > etcherLink.txt

# Set first line of a file, that contains a url, to a variable
read -r url < etcherLink.txt

# Delete from disk, if already downloaded
rm -f ${url##*/}

# Download it
wget $url

# Allow execution, read and write
chmod +rwx ${url##*/}

# Delete temporary from disk
rm -f etcherLink.txt