Update GH CLI on Ubuntu / Deb amd64

GH_CLIUp.sh

#!/bin/bash
url=$(wget -O- -q https://api.github.com/repos/cli/cli/releases/latest | grep browser_download_url | cut -d '"' -f 4 | grep "linux_amd64.deb")
# url=$(wget -O- -q --header="Authorization: token xyzABC" https://api.github.com/repos/cli/cli/releases/latest | grep browser_download_url | cut -d '"' -f 4 | grep "linux_amd64.deb")

version=$(echo $url | cut -d '/' -f 8 | cut -d 'v' -f 2)
name=$(echo $url | cut -d '/' -f 9)
checksums_url="https://github.com/cli/cli/releases/download/v${version}/gh_${version}_checksums.txt"

installed_ver=$(gh version | cut -d " " -f 3 | cut -d "h" -f 1)

if [ "$version" != "$installed_ver" ]; then

    cd /tmp/

    if [ ! -f $name.sha256 ] || [ ! -f $name ]; then
        wget -q -O "${name}" "${url}" --show-progress
        wget -q "${checksums_url}" --show-progress
        cat "gh_${version}_checksums.txt" | grep $name > "${name}.sha256"
        if sha256sum --check $name.sha256 ;then
            sudo dpkg -i $name
        fi
    else
        wget -q "${checksums_url}" --show-progress
        cat "gh_${version}_checksums.txt" | grep $name > "${name}.sha256"
        if sha256sum --check $name.sha256 ;then
            sudo dpkg -i $name
        fi
    fi
else
    echo "GH CLI is Up-to-Date (¬_¬)"
fi