#!/usr/bin/env bash # error codes# 0 - exited without problems# 1 - parameters not supported were used or some unexpected error occurred# 2 - OS not supported by this script# 3 - installed version of rclone is up to date# 4 - supported unzip tools are not available set -e #when adding a tool to the list make sure to also add its corresponding command further in the scriptunzip_tools_list=('unzip' '7z' 'busybox') usage() { echo "Usage: curl https://rclone.org/install.sh | sudo bash [-s beta]" 1>&2; exit 1; } #check for beta flagif [ -n "$1" ] && [ "$1" != "beta" ]; then    usagefi if [ -n "$1" ]; then    install_beta="beta "fi  #create tmp directory and move to it with macOS compatibility fallbacktmp_dir=$(mktemp -d 2>/dev/null || mktemp -d -t 'rclone-install.XXXXXXXXXX')cd "$tmp_dir"  #make sure unzip tool is available and choose one to work withset +efor tool in ${unzip_tools_list[*]}; do    trash=$(hash "$tool" 2>>errors)    if [ "$?" -eq 0 ]; then        unzip_tool="$tool"        break    fidone  set -e # exit if no unzip tools availableif [ -z "$unzip_tool" ]; then    printf "\nNone of the supported tools for extracting zip archives (${unzip_tools_list[*]}) were found. "    printf "Please install one of them and try again.\n\n"    exit 4fi # Make sure we don't create a root owned .config/rclone directory #2127export XDG_CONFIG_HOME=config #check installed version of rclone to determine if update is necessaryversion=$(rclone --version 2>>errors | head -n 1)if [ -z "$install_beta" ]; then    current_version=$(curl -f https://downloads.rclone.org/version.txt)else    current_version=$(curl -f https://beta.rclone.org/version.txt)fi if [ "$version" = "$current_version" ]; then    printf "\nThe latest ${install_beta}version of rclone ${version} is already installed.\n\n"    exit 3fi  #detect the platformOS="$(uname)"case $OS in  Linux)    OS='linux'    ;;  FreeBSD)    OS='freebsd'    ;;  NetBSD)    OS='netbsd'    ;;  OpenBSD)    OS='openbsd'    ;;    Darwin)    OS='osx'    ;;  SunOS)    OS='solaris'    echo 'OS not supported'    exit 2    ;;  *)    echo 'OS not supported'    exit 2    ;;esac OS_type="$(uname -m)"case "$OS_type" in  x86_64|amd64)    OS_type='amd64'    ;;  i?86|x86)    OS_type='386'    ;;  aarch64|arm64)    OS_type='arm64'    ;;  arm*)    OS_type='arm'    ;;  *)    echo 'OS type not supported'    exit 2    ;;esac  #download and unzipif [ -z "$install_beta" ]; then    download_link="https://downloads.rclone.org/rclone-current-${OS}-${OS_type}.zip"    rclone_zip="rclone-current-${OS}-${OS_type}.zip"else    download_link="https://beta.rclone.org/rclone-beta-latest-${OS}-${OS_type}.zip"    rclone_zip="rclone-beta-latest-${OS}-${OS_type}.zip"fi curl -Of "$download_link"unzip_dir="tmp_unzip_dir_for_rclone"# there should be an entry in this switch for each element of unzip_tools_listcase "$unzip_tool" in  'unzip')    unzip -a "$rclone_zip" -d "$unzip_dir"    ;;  '7z')    7z x "$rclone_zip" "-o$unzip_dir"    ;;  'busybox')    mkdir -p "$unzip_dir"    busybox unzip "$rclone_zip" -d "$unzip_dir"    ;;esac cd $unzip_dir/* #mounting rclone to environment case "$OS" in  'linux')    #binary    cp rclone /usr/bin/rclone.new    chmod 755 /usr/bin/rclone.new    chown root:root /usr/bin/rclone.new    mv /usr/bin/rclone.new /usr/bin/rclone    #manual    if ! [ -x "$(command -v mandb)" ]; then        echo 'mandb not found. The rclone man docs will not be installed.'    else         mkdir -p /usr/local/share/man/man1        cp rclone.1 /usr/local/share/man/man1/        mandb    fi    ;;  'freebsd'|'openbsd'|'netbsd')    #binary    cp rclone /usr/bin/rclone.new    chown root:wheel /usr/bin/rclone.new    mv /usr/bin/rclone.new /usr/bin/rclone    #manual    mkdir -p /usr/local/man/man1    cp rclone.1 /usr/local/man/man1/    makewhatis    ;;  'osx')    #binary    mkdir -p /usr/local/bin    cp rclone /usr/local/bin/rclone.new    mv /usr/local/bin/rclone.new /usr/local/bin/rclone    #manual    mkdir -p /usr/local/share/man/man1    cp rclone.1 /usr/local/share/man/man1/        ;;  *)    echo 'OS not supported'    exit 2esac  #update version variable post installversion=$(rclone --version 2>>errors | head -n 1) printf "\n${version} has successfully installed."printf '\nNow run "rclone config" for setup. Check https://rclone.org/docs/ for more details.\n\n'exit 0