Script to automatically download golang version

go_setup.sh

#!/bin/bash
VERSION=${VERSION:-1.22.2}
# Detect OS platform amd64
OS=$(uname -s | tr '[:upper:]' '[:lower:]')
ARCH=$(uname -m | tr '[:upper:]' '[:lower:]')
if [ "$ARCH" = "x86_64" ]; then
    ARCH="amd64"
fi
# Detect OS platform arm64
if [ "$ARCH" = "aarch64" ]; then
    ARCH="arm64"
fi
## Utilities ##
download() {
    if [ -z "$1" ]; then
        echo "download() requires a URL as first argument"
        exit 1
    fi
    if [ -z "$2" ]; then
        echo "download() requires a destination directory as second argument"
        exit 1
    fi
    if [ ! -d "$2" ]; then
        echo "$2 is not a directory"
        exit 1
    fi

    if command -v curl >/dev/null; then
        cd "$2" || (echo "Could not cd to $2" && exit 1)
        # older versions of curl don't support --output-dir
        curl -sSLO --fail --remote-name "$1"
        cd - >/dev/null || exit
    elif command -v wget >/dev/null; then
        wget -nv -P "$2" "$1"
    else
        echo "Neither curl nor wget is available, cannot download files."
        exit 1
    fi
}
# Download Go
download "https://go.dev/dl/go${VERSION}.${OS}-${ARCH}.tar.gz" "/tmp"
# Exract Go
sudo tar -C /usr/local -xzf "/tmp/go${VERSION}.${OS}-${ARCH}.tar.gz"
# Add Go to PATH
echo 'export PATH=$PATH:/usr/local/go/bin' >> ~/.bashrc
# Reload bashrc
echo "Plase reload your bashrc: source ~/.bashrc"